WordPress Vulnerabilities

WordPress < 5.4.2 - Authenticated Stored XSS via Theme Upload

Description

An authenticated user could upload a purposely broken theme and then change the theme's directory name with a Cross-Site Scripting (XSS) payload. When WordPress warns the user about the broken theme, the XSS payload is then executed.

This vulnerability would be difficult to exploit by an attacker in the real world, as the attacker would need to be able to upload themes and be able to modify directory names on the server.

One possible attack scenario is an attacker social engineering a victim to perform these actions, which is very unlikely.

Affects WordPress

5.4.1
Fixed in WordPress 5.4.2
5.4
Fixed in WordPress 5.4.2
5.3.3
Fixed in WordPress 5.3.4
5.3.2
Fixed in WordPress 5.3.4
5.3.1
Fixed in WordPress 5.3.4
5.3
Fixed in WordPress 5.3.4
5.2.6
Fixed in WordPress 5.2.7
5.2.5
Fixed in WordPress 5.2.7
5.2.4
Fixed in WordPress 5.2.7
5.2.3
Fixed in WordPress 5.2.7
5.2.2
Fixed in WordPress 5.2.7
5.2.1
Fixed in WordPress 5.2.7
5.2
Fixed in WordPress 5.2.7
5.1.5
Fixed in WordPress 5.1.6
5.1.4
Fixed in WordPress 5.1.6
5.1.3
Fixed in WordPress 5.1.6
5.1.2
Fixed in WordPress 5.1.6
5.1.1
Fixed in WordPress 5.1.6
5.1
Fixed in WordPress 5.1.6
5.0.1
Fixed in WordPress 5.0.10
5.0
Fixed in WordPress 5.0.10
4.9.14
Fixed in WordPress 4.9.15
4.9.13
Fixed in WordPress 4.9.15
4.9.12
Fixed in WordPress 4.9.15
4.9.11
Fixed in WordPress 4.9.15
4.9.10
Fixed in WordPress 4.9.15
4.9.1
Fixed in WordPress 4.9.15
4.9
Fixed in WordPress 4.9.15
4.8.13
Fixed in WordPress 4.8.14
4.8.12
Fixed in WordPress 4.8.14
4.8.11
Fixed in WordPress 4.8.14
4.8.10
Fixed in WordPress 4.8.14
4.8.1
Fixed in WordPress 4.8.14
4.8
Fixed in WordPress 4.8.14
4.7.17
Fixed in WordPress 4.7.18
4.7.16
Fixed in WordPress 4.7.18
4.7.15
Fixed in WordPress 4.7.18
4.7.14
Fixed in WordPress 4.7.18
4.7.13
Fixed in WordPress 4.7.18
4.7.12
Fixed in WordPress 4.7.18
4.7.11
Fixed in WordPress 4.7.18
4.7.10
Fixed in WordPress 4.7.18
4.7.1
Fixed in WordPress 4.7.18
4.7
Fixed in WordPress 4.7.18
4.6.18
Fixed in WordPress 4.6.19
4.6.17
Fixed in WordPress 4.6.19
4.6.16
Fixed in WordPress 4.6.19
4.6.15
Fixed in WordPress 4.6.19
4.6.14
Fixed in WordPress 4.6.19
4.6.13
Fixed in WordPress 4.6.19
4.6.12
Fixed in WordPress 4.6.19
4.6.11
Fixed in WordPress 4.6.19
4.6.10
Fixed in WordPress 4.6.19
4.6.1
Fixed in WordPress 4.6.19
4.6
Fixed in WordPress 4.6.19
4.5.21
Fixed in WordPress 4.5.22
4.5.20
Fixed in WordPress 4.5.22
4.5.2
Fixed in WordPress 4.5.22
4.5.19
Fixed in WordPress 4.5.22
4.5.18
Fixed in WordPress 4.5.22
4.5.17
Fixed in WordPress 4.5.22
4.5.16
Fixed in WordPress 4.5.22
4.5.15
Fixed in WordPress 4.5.22
4.5.14
Fixed in WordPress 4.5.22
4.5.13
Fixed in WordPress 4.5.22
4.5.12
Fixed in WordPress 4.5.22
4.5.11
Fixed in WordPress 4.5.22
4.5.10
Fixed in WordPress 4.5.22
4.5.1
Fixed in WordPress 4.5.22
4.5
Fixed in WordPress 4.5.22
4.4.22
Fixed in WordPress 4.4.23
4.4.21
Fixed in WordPress 4.4.23
4.4.20
Fixed in WordPress 4.4.23
4.4.2
Fixed in WordPress 4.4.23
4.4.19
Fixed in WordPress 4.4.23
4.4.18
Fixed in WordPress 4.4.23
4.4.17
Fixed in WordPress 4.4.23
4.4.16
Fixed in WordPress 4.4.23
4.4.15
Fixed in WordPress 4.4.23
4.4.14
Fixed in WordPress 4.4.23
4.4.13
Fixed in WordPress 4.4.23
4.4.12
Fixed in WordPress 4.4.23
4.4.11
Fixed in WordPress 4.4.23
4.4.10
Fixed in WordPress 4.4.23
4.4.1
Fixed in WordPress 4.4.23
4.4
Fixed in WordPress 4.4.23
4.3.23
Fixed in WordPress 4.3.24
4.3.22
Fixed in WordPress 4.3.24
4.3.21
Fixed in WordPress 4.3.24
4.3.20
Fixed in WordPress 4.3.24
4.3.2
Fixed in WordPress 4.3.24
4.3.19
Fixed in WordPress 4.3.24
4.3.18
Fixed in WordPress 4.3.24
4.3.17
Fixed in WordPress 4.3.24
4.3.16
Fixed in WordPress 4.3.24
4.3.15
Fixed in WordPress 4.3.24
4.3.14
Fixed in WordPress 4.3.24
4.3.13
Fixed in WordPress 4.3.24
4.3.12
Fixed in WordPress 4.3.24
4.3.11
Fixed in WordPress 4.3.24
4.3.10
Fixed in WordPress 4.3.24
4.3.1
Fixed in WordPress 4.3.24
4.3
Fixed in WordPress 4.3.24
4.2.27
Fixed in WordPress 4.2.28
4.2.26
Fixed in WordPress 4.2.28
4.2.25
Fixed in WordPress 4.2.28
4.2.24
Fixed in WordPress 4.2.28
4.2.23
Fixed in WordPress 4.2.28
4.2.22
Fixed in WordPress 4.2.28
4.2.21
Fixed in WordPress 4.2.28
4.2.20
Fixed in WordPress 4.2.28
4.2.2
Fixed in WordPress 4.2.28
4.2.19
Fixed in WordPress 4.2.28
4.2.18
Fixed in WordPress 4.2.28
4.2.17
Fixed in WordPress 4.2.28
4.2.16
Fixed in WordPress 4.2.28
4.2.15
Fixed in WordPress 4.2.28
4.2.14
Fixed in WordPress 4.2.28
4.2.13
Fixed in WordPress 4.2.28
4.2.12
Fixed in WordPress 4.2.28
4.2.11
Fixed in WordPress 4.2.28
4.2.10
Fixed in WordPress 4.2.28
4.2.1
Fixed in WordPress 4.2.28
4.2
Fixed in WordPress 4.2.28
4.1.30
Fixed in WordPress 4.1.31
4.1.3
Fixed in WordPress 4.1.31
4.1.29
Fixed in WordPress 4.1.31
4.1.28
Fixed in WordPress 4.1.31
4.1.27
Fixed in WordPress 4.1.31
4.1.26
Fixed in WordPress 4.1.31
4.1.25
Fixed in WordPress 4.1.31
4.1.24
Fixed in WordPress 4.1.31
4.1.23
Fixed in WordPress 4.1.31
4.1.22
Fixed in WordPress 4.1.31
4.1.21
Fixed in WordPress 4.1.31
4.1.20
Fixed in WordPress 4.1.31
4.1.2
Fixed in WordPress 4.1.31
4.1.19
Fixed in WordPress 4.1.31
4.1.18
Fixed in WordPress 4.1.31
4.1.17
Fixed in WordPress 4.1.31
4.1.16
Fixed in WordPress 4.1.31
4.1.15
Fixed in WordPress 4.1.31
4.1.14
Fixed in WordPress 4.1.31
4.1.13
Fixed in WordPress 4.1.31
4.1.12
Fixed in WordPress 4.1.31
4.1.11
Fixed in WordPress 4.1.31
4.1.10
Fixed in WordPress 4.1.31
4.1.1
Fixed in WordPress 4.1.31
4.1
Fixed in WordPress 4.1.31
4.0.30
Fixed in WordPress 4.0.31
4.0.3
Fixed in WordPress 4.0.31
4.0.29
Fixed in WordPress 4.0.31
4.0.28
Fixed in WordPress 4.0.31
4.0.27
Fixed in WordPress 4.0.31
4.0.26
Fixed in WordPress 4.0.31
4.0.25
Fixed in WordPress 4.0.31
4.0.24
Fixed in WordPress 4.0.31
4.0.23
Fixed in WordPress 4.0.31
4.0.22
Fixed in WordPress 4.0.31
4.0.21
Fixed in WordPress 4.0.31
4.0.20
Fixed in WordPress 4.0.31
4.0.2
Fixed in WordPress 4.0.31
4.0.19
Fixed in WordPress 4.0.31
4.0.18
Fixed in WordPress 4.0.31
4.0.17
Fixed in WordPress 4.0.31
4.0.16
Fixed in WordPress 4.0.31
4.0.15
Fixed in WordPress 4.0.31
4.0.14
Fixed in WordPress 4.0.31
4.0.13
Fixed in WordPress 4.0.31
4.0.12
Fixed in WordPress 4.0.31
4.0.11
Fixed in WordPress 4.0.31
4.0.10
Fixed in WordPress 4.0.31
4.0.1
Fixed in WordPress 4.0.31
4.0
Fixed in WordPress 4.0.31
3.9.31
Fixed in WordPress 3.9.32
3.9.30
Fixed in WordPress 3.9.32
3.9.3
Fixed in WordPress 3.9.32
3.9.29
Fixed in WordPress 3.9.32
3.9.28
Fixed in WordPress 3.9.32
3.9.27
Fixed in WordPress 3.9.32
3.9.26
Fixed in WordPress 3.9.32
3.9.25
Fixed in WordPress 3.9.32
3.9.24
Fixed in WordPress 3.9.32
3.9.23
Fixed in WordPress 3.9.32
3.9.22
Fixed in WordPress 3.9.32
3.9.21
Fixed in WordPress 3.9.32
3.9.20
Fixed in WordPress 3.9.32
3.9.2
Fixed in WordPress 3.9.32
3.9.19
Fixed in WordPress 3.9.32
3.9.18
Fixed in WordPress 3.9.32
3.9.17
Fixed in WordPress 3.9.32
3.9.16
Fixed in WordPress 3.9.32
3.9.15
Fixed in WordPress 3.9.32
3.9.14
Fixed in WordPress 3.9.32
3.9.13
Fixed in WordPress 3.9.32
3.9.12
Fixed in WordPress 3.9.32
3.9.11
Fixed in WordPress 3.9.32
3.9.10
Fixed in WordPress 3.9.32
3.9.1
Fixed in WordPress 3.9.32
3.9
Fixed in WordPress 3.9.32
3.8.33
Fixed in WordPress 3.8.34
3.8.32
Fixed in WordPress 3.8.34
3.8.31
Fixed in WordPress 3.8.34
3.8.30
Fixed in WordPress 3.8.34
3.8.3
Fixed in WordPress 3.8.34
3.8.29
Fixed in WordPress 3.8.34
3.8.28
Fixed in WordPress 3.8.34
3.8.27
Fixed in WordPress 3.8.34
3.8.26
Fixed in WordPress 3.8.34
3.8.25
Fixed in WordPress 3.8.34
3.8.24
Fixed in WordPress 3.8.34
3.8.23
Fixed in WordPress 3.8.34
3.8.22
Fixed in WordPress 3.8.34
3.8.21
Fixed in WordPress 3.8.34
3.8.20
Fixed in WordPress 3.8.34
3.8.2
Fixed in WordPress 3.8.34
3.8.19
Fixed in WordPress 3.8.34
3.8.18
Fixed in WordPress 3.8.34
3.8.17
Fixed in WordPress 3.8.34
3.8.16
Fixed in WordPress 3.8.34
3.8.15
Fixed in WordPress 3.8.34
3.8.14
Fixed in WordPress 3.8.34
3.8.13
Fixed in WordPress 3.8.34
3.8.12
Fixed in WordPress 3.8.34
3.8.11
Fixed in WordPress 3.8.34
3.8.10
Fixed in WordPress 3.8.34
3.8.1
Fixed in WordPress 3.8.34
3.8
Fixed in WordPress 3.8.34
3.7.33
Fixed in WordPress 3.7.34
3.7.32
Fixed in WordPress 3.7.34
3.7.31
Fixed in WordPress 3.7.34
3.7.30
Fixed in WordPress 3.7.34
3.7.3
Fixed in WordPress 3.7.34
3.7.29
Fixed in WordPress 3.7.34
3.7.28
Fixed in WordPress 3.7.34
3.7.27
Fixed in WordPress 3.7.34
3.7.26
Fixed in WordPress 3.7.34
3.7.25
Fixed in WordPress 3.7.34
3.7.24
Fixed in WordPress 3.7.34
3.7.23
Fixed in WordPress 3.7.34
3.7.22
Fixed in WordPress 3.7.34
3.7.21
Fixed in WordPress 3.7.34
3.7.20
Fixed in WordPress 3.7.34
3.7.2
Fixed in WordPress 3.7.34
3.7.19
Fixed in WordPress 3.7.34
3.7.18
Fixed in WordPress 3.7.34
3.7.17
Fixed in WordPress 3.7.34
3.7.16
Fixed in WordPress 3.7.34
3.7.15
Fixed in WordPress 3.7.34
3.7.14
Fixed in WordPress 3.7.34
3.7.13
Fixed in WordPress 3.7.34
3.7.12
Fixed in WordPress 3.7.34
3.7.11
Fixed in WordPress 3.7.34
3.7.10
Fixed in WordPress 3.7.34
3.7.1
Fixed in WordPress 3.7.34
3.7
Fixed in WordPress 3.7.34

References

CVE
CVE-2020-4049
Exploitdb
48770
URL
https://hackerone.com/reports/406289
URL
https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/
URL
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-87h4-phjv-rm6p

Classification

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

Miscellaneous

Original Researcher
Nrimo Ing Pandum
Verified
No
WPVDB ID
d8addb42-e70b-4439-b828-fd0697e5d9d4

Timeline

Publicly Published
2020-06-11 (about 5 years ago)
Added
2020-06-11 (about 5 years ago)
Last Updated
2020-08-28 (about 5 years ago)

Other

Published
Title
Published
2026-03-20
Title
Sherk Custom Post Type Displays <= 1.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'title' Shortcode Attribute
Published
2021-06-16
Title
Request a Quote < 2.3.4 - Authenticated Stored XSS
Published
2024-10-21
Title
WP-Members Membership Plugin < 3.4.9.6 - Reflected Cross-Site Scripting
Published
2024-10-17
Title
Advanced Category and Custom Taxonomy Image < 1.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via ad_tax_image Shortcode
Published
2014-08-01
Title
Securimage-WP 3.2.4 - siwp_test.php URI XSS