Low severity2.4NVD Advisory· Published Jun 12, 2020· Updated Jun 17, 2026
CVE-2020-4049
CVE-2020-4049
Description
In affected versions of WordPress, when uploading themes, the name of the theme folder can be crafted in a way that could lead to JavaScript execution in /wp-admin on the themes page. This does require an admin to upload the theme, and is low severity self-XSS. This has been patched in version 5.4.2, along with all the previously affected versions via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18, 4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28, 4.1.31, 4.0.31, 3.9.32, 3.8.34, 3.7.34).
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Affected products
10<5.4.2, <5.3.4, <5.2.7, <5.1.6, <5.0.10, <4.9.15, <4.8.14, <4.7.18, <4.6.19, <4.5.22, <4.4.23, <4.3.24, <4.2.28, <4.1.31, <4.0.31, <3.9.32, <3.8.34, <3.7.34+ 1 more
- (no CPE)range: <5.4.2, <5.3.4, <5.2.7, <5.1.6, <5.0.10, <4.9.15, <4.8.14, <4.7.18, <4.6.19, <4.5.22, <4.4.23, <4.3.24, <4.2.28, <4.1.31, <4.0.31, <3.9.32, <3.8.34, <3.7.34
- cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*range: >=3.7,<3.7.34
- Range: >= 5.4.0, < 5.4.2
- osv-coords2 versions
>= 3.7.0, < 3.7.34+ 1 more
- (no CPE)range: >= 3.7.0, < 3.7.34
- (no CPE)range: >= 3.7.0, < 3.7.34
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
8- github.com/WordPress/wordpress-develop/commit/404f397b4012fd9d382e55bf7d206c1317f01148nvdPatchThird Party Advisory
- github.com/WordPress/wordpress-develop/security/advisories/GHSA-87h4-phjv-rm6pnvdThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/07/msg00000.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/09/msg00011.htmlnvdMailing ListThird Party Advisory
- wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/nvdVendor Advisory
- www.debian.org/security/2020/dsa-4709nvdThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/773N2ZV7QEMBGKH6FBKI6Q5S3YJMW357/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ODNHXVJS25YVWYQHOCICXTLIN5UYJFDN/nvd
News mentions
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