WordPress Vulnerabilities

WP < 7.1.1 - Admin+ Stored XSS via Custom Header

Description

WordPress does not sanitise and escape some custom header settings before outputting them back in an admin screen in some cases, which could allow users with a high role, such as site administrators on Multisite, to perform Stored XSS attacks against other users, such as super administrators.

Affects WordPress

7.1
Fixed in WordPress 7.1.1
7.0.4
Fixed in WordPress 7.0.5
7.0.3
Fixed in WordPress 7.0.5
7.0.2
Fixed in WordPress 7.0.5
7.0.1
Fixed in WordPress 7.0.5
7.0
Fixed in WordPress 7.0.5
6.9.7
Fixed in WordPress 6.9.8
6.9.6
Fixed in WordPress 6.9.8
6.9.5
Fixed in WordPress 6.9.8
6.9.4
Fixed in WordPress 6.9.8
6.9.3
Fixed in WordPress 6.9.8
6.9.2
Fixed in WordPress 6.9.8
6.9.1
Fixed in WordPress 6.9.8
6.9
Fixed in WordPress 6.9.8
6.8.8
Fixed in WordPress 6.8.9
6.8.7
Fixed in WordPress 6.8.9
6.8.6
Fixed in WordPress 6.8.9
6.8.5
Fixed in WordPress 6.8.9
6.8.4
Fixed in WordPress 6.8.9
6.8.3
Fixed in WordPress 6.8.9
6.8.2
Fixed in WordPress 6.8.9
6.8.1
Fixed in WordPress 6.8.9
6.8
Fixed in WordPress 6.8.9
6.7.7
Fixed in WordPress 6.7.8
6.7.6
Fixed in WordPress 6.7.8
6.7.5
Fixed in WordPress 6.7.8
6.7.4
Fixed in WordPress 6.7.8
6.7.3
Fixed in WordPress 6.7.8
6.7.2
Fixed in WordPress 6.7.8
6.7.1
Fixed in WordPress 6.7.8
6.7
Fixed in WordPress 6.7.8
6.6.7
Fixed in WordPress 6.6.8
6.6.6
Fixed in WordPress 6.6.8
6.6.5
Fixed in WordPress 6.6.8
6.6.4
Fixed in WordPress 6.6.8
6.6.3
Fixed in WordPress 6.6.8
6.6.2
Fixed in WordPress 6.6.8
6.6.1
Fixed in WordPress 6.6.8
6.6
Fixed in WordPress 6.6.8
6.5.10
Fixed in WordPress 6.5.11
6.5.9
Fixed in WordPress 6.5.11
6.5.8
Fixed in WordPress 6.5.11
6.5.7
Fixed in WordPress 6.5.11
6.5.6
Fixed in WordPress 6.5.11
6.5.5
Fixed in WordPress 6.5.11
6.5.4
Fixed in WordPress 6.5.11
6.5.3
Fixed in WordPress 6.5.11
6.5.2
Fixed in WordPress 6.5.11
6.5
Fixed in WordPress 6.5.11
6.4.10
Fixed in WordPress 6.4.11
6.4.9
Fixed in WordPress 6.4.11
6.4.8
Fixed in WordPress 6.4.11
6.4.7
Fixed in WordPress 6.4.11
6.4.6
Fixed in WordPress 6.4.11
6.4.5
Fixed in WordPress 6.4.11
6.4.4
Fixed in WordPress 6.4.11
6.4.3
Fixed in WordPress 6.4.11
6.4.2
Fixed in WordPress 6.4.11
6.4.1
Fixed in WordPress 6.4.11
6.4
Fixed in WordPress 6.4.11
6.3.10
Fixed in WordPress 6.3.11
6.3.9
Fixed in WordPress 6.3.11
6.3.8
Fixed in WordPress 6.3.11
6.3.7
Fixed in WordPress 6.3.11
6.3.6
Fixed in WordPress 6.3.11
6.3.5
Fixed in WordPress 6.3.11
6.3.4
Fixed in WordPress 6.3.11
6.3.3
Fixed in WordPress 6.3.11
6.3.2
Fixed in WordPress 6.3.11
6.3.1
Fixed in WordPress 6.3.11
6.3
Fixed in WordPress 6.3.11
6.2.11
Fixed in WordPress 6.2.12
6.2.10
Fixed in WordPress 6.2.12
6.2.9
Fixed in WordPress 6.2.12
6.2.8
Fixed in WordPress 6.2.12
6.2.7
Fixed in WordPress 6.2.12
6.2.6
Fixed in WordPress 6.2.12
6.2.5
Fixed in WordPress 6.2.12
6.2.4
Fixed in WordPress 6.2.12
6.2.3
Fixed in WordPress 6.2.12
6.2.2
Fixed in WordPress 6.2.12
6.2.1
Fixed in WordPress 6.2.12
6.2
Fixed in WordPress 6.2.12
6.1.12
Fixed in WordPress 6.1.13
6.1.11
Fixed in WordPress 6.1.13
6.1.10
Fixed in WordPress 6.1.13
6.1.9
Fixed in WordPress 6.1.13
6.1.8
Fixed in WordPress 6.1.13
6.1.7
Fixed in WordPress 6.1.13
6.1.6
Fixed in WordPress 6.1.13
6.1.5
Fixed in WordPress 6.1.13
6.1.4
Fixed in WordPress 6.1.13
6.1.3
Fixed in WordPress 6.1.13
6.1.2
Fixed in WordPress 6.1.13
6.1.1
Fixed in WordPress 6.1.13
6.1
Fixed in WordPress 6.1.13
6.0.14
Fixed in WordPress 6.0.15
6.0.13
Fixed in WordPress 6.0.15
6.0.12
Fixed in WordPress 6.0.15
6.0.11
Fixed in WordPress 6.0.15
6.0.10
Fixed in WordPress 6.0.15
6.0.9
Fixed in WordPress 6.0.15
6.0.8
Fixed in WordPress 6.0.15
6.0.7
Fixed in WordPress 6.0.15
6.0.6
Fixed in WordPress 6.0.15
6.0.5
Fixed in WordPress 6.0.15
6.0.4
Fixed in WordPress 6.0.15
6.0.3
Fixed in WordPress 6.0.15
6.0.2
Fixed in WordPress 6.0.15
6.0.1
Fixed in WordPress 6.0.15
6.0
Fixed in WordPress 6.0.15
5.9.16
Fixed in WordPress 5.9.17
5.9.15
Fixed in WordPress 5.9.17
5.9.14
Fixed in WordPress 5.9.17
5.9.13
Fixed in WordPress 5.9.17
5.9.12
Fixed in WordPress 5.9.17
5.9.11
Fixed in WordPress 5.9.17
5.9.10
Fixed in WordPress 5.9.17
5.9.9
Fixed in WordPress 5.9.17
5.9.8
Fixed in WordPress 5.9.17
5.9.7
Fixed in WordPress 5.9.17
5.9.6
Fixed in WordPress 5.9.17
5.9.5
Fixed in WordPress 5.9.17
5.9.4
Fixed in WordPress 5.9.17
5.9.3
Fixed in WordPress 5.9.17
5.9.2
Fixed in WordPress 5.9.17
5.9.1
Fixed in WordPress 5.9.17
5.9
Fixed in WordPress 5.9.17
5.8.15
Fixed in WordPress 5.8.16
5.8.14
Fixed in WordPress 5.8.16
5.8.13
Fixed in WordPress 5.8.16
5.8.12
Fixed in WordPress 5.8.16
5.8.11
Fixed in WordPress 5.8.16
5.8.10
Fixed in WordPress 5.8.16
5.8.9
Fixed in WordPress 5.8.16
5.8.8
Fixed in WordPress 5.8.16
5.8.7
Fixed in WordPress 5.8.16
5.8.6
Fixed in WordPress 5.8.16
5.8.5
Fixed in WordPress 5.8.16
5.8.4
Fixed in WordPress 5.8.16
5.8.3
Fixed in WordPress 5.8.16
5.8.2
Fixed in WordPress 5.8.16
5.8.1
Fixed in WordPress 5.8.16
5.8
Fixed in WordPress 5.8.16
5.7.17
Fixed in WordPress 5.7.18
5.7.16
Fixed in WordPress 5.7.18
5.7.15
Fixed in WordPress 5.7.18
5.7.14
Fixed in WordPress 5.7.18
5.7.13
Fixed in WordPress 5.7.18
5.7.12
Fixed in WordPress 5.7.18
5.7.11
Fixed in WordPress 5.7.18
5.7.10
Fixed in WordPress 5.7.18
5.7.9
Fixed in WordPress 5.7.18
5.7.8
Fixed in WordPress 5.7.18
5.7.7
Fixed in WordPress 5.7.18
5.7.6
Fixed in WordPress 5.7.18
5.7.5
Fixed in WordPress 5.7.18
5.7.4
Fixed in WordPress 5.7.18
5.7.3
Fixed in WordPress 5.7.18
5.7.2
Fixed in WordPress 5.7.18
5.7.1
Fixed in WordPress 5.7.18
5.7
Fixed in WordPress 5.7.18
5.6.19
Fixed in WordPress 5.6.20
5.6.18
Fixed in WordPress 5.6.20
5.6.17
Fixed in WordPress 5.6.20
5.6.16
Fixed in WordPress 5.6.20
5.6.15
Fixed in WordPress 5.6.20
5.6.14
Fixed in WordPress 5.6.20
5.6.13
Fixed in WordPress 5.6.20
5.6.12
Fixed in WordPress 5.6.20
5.6.11
Fixed in WordPress 5.6.20
5.6.10
Fixed in WordPress 5.6.20
5.6.9
Fixed in WordPress 5.6.20
5.6.8
Fixed in WordPress 5.6.20
5.6.7
Fixed in WordPress 5.6.20
5.6.6
Fixed in WordPress 5.6.20
5.6.5
Fixed in WordPress 5.6.20
5.6.4
Fixed in WordPress 5.6.20
5.6.3
Fixed in WordPress 5.6.20
5.6.2
Fixed in WordPress 5.6.20
5.6.1
Fixed in WordPress 5.6.20
5.6
Fixed in WordPress 5.6.20
5.5.20
Fixed in WordPress 5.5.21
5.5.19
Fixed in WordPress 5.5.21
5.5.18
Fixed in WordPress 5.5.21
5.5.17
Fixed in WordPress 5.5.21
5.5.16
Fixed in WordPress 5.5.21
5.5.15
Fixed in WordPress 5.5.21
5.5.14
Fixed in WordPress 5.5.21
5.5.13
Fixed in WordPress 5.5.21
5.5.12
Fixed in WordPress 5.5.21
5.5.11
Fixed in WordPress 5.5.21
5.5.10
Fixed in WordPress 5.5.21
5.5.9
Fixed in WordPress 5.5.21
5.5.8
Fixed in WordPress 5.5.21
5.5.7
Fixed in WordPress 5.5.21
5.5.6
Fixed in WordPress 5.5.21
5.5.5
Fixed in WordPress 5.5.21
5.5.4
Fixed in WordPress 5.5.21
5.5.3
Fixed in WordPress 5.5.21
5.5.2
Fixed in WordPress 5.5.21
5.5.1
Fixed in WordPress 5.5.21
5.5
Fixed in WordPress 5.5.21
5.4.21
Fixed in WordPress 5.4.22
5.4.20
Fixed in WordPress 5.4.22
5.4.19
Fixed in WordPress 5.4.22
5.4.18
Fixed in WordPress 5.4.22
5.4.17
Fixed in WordPress 5.4.22
5.4.16
Fixed in WordPress 5.4.22
5.4.15
Fixed in WordPress 5.4.22
5.4.14
Fixed in WordPress 5.4.22
5.4.13
Fixed in WordPress 5.4.22
5.4.12
Fixed in WordPress 5.4.22
5.4.11
Fixed in WordPress 5.4.22
5.4.10
Fixed in WordPress 5.4.22
5.4.9
Fixed in WordPress 5.4.22
5.4.8
Fixed in WordPress 5.4.22
5.4.7
Fixed in WordPress 5.4.22
5.4.6
Fixed in WordPress 5.4.22
5.4.5
Fixed in WordPress 5.4.22
5.4.4
Fixed in WordPress 5.4.22
5.4.3
Fixed in WordPress 5.4.22
5.4.2
Fixed in WordPress 5.4.22
5.4.1
Fixed in WordPress 5.4.22
5.4
Fixed in WordPress 5.4.22
5.3.23
Fixed in WordPress 5.3.24
5.3.22
Fixed in WordPress 5.3.24
5.3.21
Fixed in WordPress 5.3.24
5.3.20
Fixed in WordPress 5.3.24
5.3.19
Fixed in WordPress 5.3.24
5.3.18
Fixed in WordPress 5.3.24
5.3.17
Fixed in WordPress 5.3.24
5.3.16
Fixed in WordPress 5.3.24
5.3.15
Fixed in WordPress 5.3.24
5.3.14
Fixed in WordPress 5.3.24
5.3.13
Fixed in WordPress 5.3.24
5.3.12
Fixed in WordPress 5.3.24
5.3.11
Fixed in WordPress 5.3.24
5.3.10
Fixed in WordPress 5.3.24
5.3.9
Fixed in WordPress 5.3.24
5.3.8
Fixed in WordPress 5.3.24
5.3.7
Fixed in WordPress 5.3.24
5.3.6
Fixed in WordPress 5.3.24
5.3.5
Fixed in WordPress 5.3.24
5.3.4
Fixed in WordPress 5.3.24
5.3.3
Fixed in WordPress 5.3.24
5.3.2
Fixed in WordPress 5.3.24
5.3.1
Fixed in WordPress 5.3.24
5.3
Fixed in WordPress 5.3.24
5.2.26
Fixed in WordPress 5.2.27
5.2.25
Fixed in WordPress 5.2.27
5.2.24
Fixed in WordPress 5.2.27
5.2.23
Fixed in WordPress 5.2.27
5.2.22
Fixed in WordPress 5.2.27
5.2.21
Fixed in WordPress 5.2.27
5.2.20
Fixed in WordPress 5.2.27
5.2.19
Fixed in WordPress 5.2.27
5.2.18
Fixed in WordPress 5.2.27
5.2.17
Fixed in WordPress 5.2.27
5.2.16
Fixed in WordPress 5.2.27
5.2.15
Fixed in WordPress 5.2.27
5.2.14
Fixed in WordPress 5.2.27
5.2.13
Fixed in WordPress 5.2.27
5.2.12
Fixed in WordPress 5.2.27
5.2.11
Fixed in WordPress 5.2.27
5.2.10
Fixed in WordPress 5.2.27
5.2.9
Fixed in WordPress 5.2.27
5.2.8
Fixed in WordPress 5.2.27
5.2.7
Fixed in WordPress 5.2.27
5.2.6
Fixed in WordPress 5.2.27
5.2.5
Fixed in WordPress 5.2.27
5.2.4
Fixed in WordPress 5.2.27
5.2.3
Fixed in WordPress 5.2.27
5.2.2
Fixed in WordPress 5.2.27
5.2.1
Fixed in WordPress 5.2.27
5.2
Fixed in WordPress 5.2.27
5.1.24
Fixed in WordPress 5.1.25
5.1.23
Fixed in WordPress 5.1.25
5.1.22
Fixed in WordPress 5.1.25
5.1.21
Fixed in WordPress 5.1.25
5.1.20
Fixed in WordPress 5.1.25
5.1.19
Fixed in WordPress 5.1.25
5.1.18
Fixed in WordPress 5.1.25
5.1.17
Fixed in WordPress 5.1.25
5.1.16
Fixed in WordPress 5.1.25
5.1.15
Fixed in WordPress 5.1.25
5.1.14
Fixed in WordPress 5.1.25
5.1.13
Fixed in WordPress 5.1.25
5.1.12
Fixed in WordPress 5.1.25
5.1.11
Fixed in WordPress 5.1.25
5.1.10
Fixed in WordPress 5.1.25
5.1.9
Fixed in WordPress 5.1.25
5.1.8
Fixed in WordPress 5.1.25
5.1.7
Fixed in WordPress 5.1.25
5.1.6
Fixed in WordPress 5.1.25
5.1.5
Fixed in WordPress 5.1.25
5.1.4
Fixed in WordPress 5.1.25
5.1.3
Fixed in WordPress 5.1.25
5.1.2
Fixed in WordPress 5.1.25
5.1.1
Fixed in WordPress 5.1.25
5.1
Fixed in WordPress 5.1.25
5.0.27
Fixed in WordPress 5.0.28
5.0.26
Fixed in WordPress 5.0.28
5.0.25
Fixed in WordPress 5.0.28
5.0.24
Fixed in WordPress 5.0.28
5.0.23
Fixed in WordPress 5.0.28
5.0.22
Fixed in WordPress 5.0.28
5.0.21
Fixed in WordPress 5.0.28
5.0.20
Fixed in WordPress 5.0.28
5.0.19
Fixed in WordPress 5.0.28
5.0.18
Fixed in WordPress 5.0.28
5.0.17
Fixed in WordPress 5.0.28
5.0.16
Fixed in WordPress 5.0.28
5.0.15
Fixed in WordPress 5.0.28
5.0.14
Fixed in WordPress 5.0.28
5.0.13
Fixed in WordPress 5.0.28
5.0.12
Fixed in WordPress 5.0.28
5.0.11
Fixed in WordPress 5.0.28
5.0.10
Fixed in WordPress 5.0.28
5.0.9
Fixed in WordPress 5.0.28
5.0.8
Fixed in WordPress 5.0.28
5.0.7
Fixed in WordPress 5.0.28
5.0.6
Fixed in WordPress 5.0.28
5.0.4
Fixed in WordPress 5.0.28
5.0.3
Fixed in WordPress 5.0.28
5.0.2
Fixed in WordPress 5.0.28
5.0.1
Fixed in WordPress 5.0.28
5.0
Fixed in WordPress 5.0.28
4.9.31
Fixed in WordPress 4.9.32
4.9.30
Fixed in WordPress 4.9.32
4.9.29
Fixed in WordPress 4.9.32
4.9.28
Fixed in WordPress 4.9.32
4.9.27
Fixed in WordPress 4.9.32
4.9.26
Fixed in WordPress 4.9.32
4.9.25
Fixed in WordPress 4.9.32
4.9.24
Fixed in WordPress 4.9.32
4.9.23
Fixed in WordPress 4.9.32
4.9.22
Fixed in WordPress 4.9.32
4.9.21
Fixed in WordPress 4.9.32
4.9.20
Fixed in WordPress 4.9.32
4.9.19
Fixed in WordPress 4.9.32
4.9.18
Fixed in WordPress 4.9.32
4.9.17
Fixed in WordPress 4.9.32
4.9.16
Fixed in WordPress 4.9.32
4.9.15
Fixed in WordPress 4.9.32
4.9.14
Fixed in WordPress 4.9.32
4.9.13
Fixed in WordPress 4.9.32
4.9.12
Fixed in WordPress 4.9.32
4.9.11
Fixed in WordPress 4.9.32
4.9.10
Fixed in WordPress 4.9.32
4.9.9
Fixed in WordPress 4.9.32
4.9.8
Fixed in WordPress 4.9.32
4.9.7
Fixed in WordPress 4.9.32
4.9.6
Fixed in WordPress 4.9.32
4.9.5
Fixed in WordPress 4.9.32
4.9.4
Fixed in WordPress 4.9.32
4.9.3
Fixed in WordPress 4.9.32
4.9.2
Fixed in WordPress 4.9.32
4.9.1
Fixed in WordPress 4.9.32
4.9
Fixed in WordPress 4.9.32
4.8.30
Fixed in WordPress 4.8.31
4.8.29
Fixed in WordPress 4.8.31
4.8.28
Fixed in WordPress 4.8.31
4.8.27
Fixed in WordPress 4.8.31
4.8.26
Fixed in WordPress 4.8.31
4.8.25
Fixed in WordPress 4.8.31
4.8.24
Fixed in WordPress 4.8.31
4.8.23
Fixed in WordPress 4.8.31
4.8.22
Fixed in WordPress 4.8.31
4.8.21
Fixed in WordPress 4.8.31
4.8.20
Fixed in WordPress 4.8.31
4.8.19
Fixed in WordPress 4.8.31
4.8.18
Fixed in WordPress 4.8.31
4.8.17
Fixed in WordPress 4.8.31
4.8.16
Fixed in WordPress 4.8.31
4.8.15
Fixed in WordPress 4.8.31
4.8.14
Fixed in WordPress 4.8.31
4.8.13
Fixed in WordPress 4.8.31
4.8.12
Fixed in WordPress 4.8.31
4.8.11
Fixed in WordPress 4.8.31
4.8.10
Fixed in WordPress 4.8.31
4.8.9
Fixed in WordPress 4.8.31
4.8.8
Fixed in WordPress 4.8.31
4.8.7
Fixed in WordPress 4.8.31
4.8.6
Fixed in WordPress 4.8.31
4.8.5
Fixed in WordPress 4.8.31
4.8.4
Fixed in WordPress 4.8.31
4.8.3
Fixed in WordPress 4.8.31
4.8.2
Fixed in WordPress 4.8.31
4.8.1
Fixed in WordPress 4.8.31
4.8
Fixed in WordPress 4.8.31
4.7.35
Fixed in WordPress 4.7.36
4.7.34
Fixed in WordPress 4.7.36
4.7.33
Fixed in WordPress 4.7.36
4.7.32
Fixed in WordPress 4.7.36
4.7.31
Fixed in WordPress 4.7.36
4.7.30
Fixed in WordPress 4.7.36
4.7.29
Fixed in WordPress 4.7.36
4.7.28
Fixed in WordPress 4.7.36
4.7.27
Fixed in WordPress 4.7.36
4.7.26
Fixed in WordPress 4.7.36
4.7.25
Fixed in WordPress 4.7.36
4.7.24
Fixed in WordPress 4.7.36
4.7.23
Fixed in WordPress 4.7.36
4.7.22
Fixed in WordPress 4.7.36
4.7.21
Fixed in WordPress 4.7.36
4.7.20
Fixed in WordPress 4.7.36
4.7.19
Fixed in WordPress 4.7.36
4.7.18
Fixed in WordPress 4.7.36
4.7.17
Fixed in WordPress 4.7.36
4.7.16
Fixed in WordPress 4.7.36
4.7.15
Fixed in WordPress 4.7.36
4.7.14
Fixed in WordPress 4.7.36
4.7.13
Fixed in WordPress 4.7.36
4.7.12
Fixed in WordPress 4.7.36
4.7.11
Fixed in WordPress 4.7.36
4.7.10
Fixed in WordPress 4.7.36
4.7.9
Fixed in WordPress 4.7.36
4.7.8
Fixed in WordPress 4.7.36
4.7.7
Fixed in WordPress 4.7.36
4.7.6
Fixed in WordPress 4.7.36
4.7.5
Fixed in WordPress 4.7.36
4.7.4
Fixed in WordPress 4.7.36
4.7.3
Fixed in WordPress 4.7.36
4.7.2
Fixed in WordPress 4.7.36
4.7.1
Fixed in WordPress 4.7.36
4.7
Fixed in WordPress 4.7.36

References

URL
https://wordpress.org/news/2026/09/wordpress-7-1-1-maintenance-and-security-release/

Classification

Type
XSS
OWASP top 10
A7: Cross-Site Scripting (XSS)
CWE
CWE-79
CVSS
3.5 (low)

Miscellaneous

Original Researcher
Jeremy Felt
Verified
Yes
WPVDB ID
0e4cc769-a934-4883-9da5-5721133c6305

Timeline

Publicly Published
2026-09-17 (about 1 month ago)
Added
2026-09-18 (about 1 month ago)
Last Updated
2026-09-18 (about 1 month ago)

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