WordPress Vulnerabilities

WP < 7.1.1 - Admin+ CSS Injection on Multisite via XML-RPC

Description

WordPress does not properly enforce the capability required to edit custom CSS when publishing customizer changes through XML-RPC in some cases, which could allow site administrators on Multisite, who are denied that capability, to inject arbitrary CSS into the site.

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
CONTENT INJECTION
OWASP top 10
A1: Injection
CWE
CWE-345
CVSS
5.5 (medium)

Miscellaneous

Original Researcher
Ben Bidner
Verified
Yes
WPVDB ID
c16c950c-1a46-4068-8ce9-6e50f9e703b5

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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