Cross-site Scripting (XSS) The advisory has been revoked - it doesn't affect any version of package wordpress (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU2510-WORDPRESS-15026051
- published17 Jan 2026
- disclosed30 Apr 2020
Introduced: 30 Apr 2020
CVE-2020-11026 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:25.10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream wordpress package and not the wordpress package as distributed by Ubuntu.
In affected versions of WordPress, files with a specially crafted name when uploaded to the Media section can lead to script execution upon accessing the file. This requires an authenticated user with privileges to upload files. This has been patched in version 5.4.1, along with all the previously affected versions via a minor release (5.3.3, 5.2.6, 5.1.5, 5.0.9, 4.9.14, 4.8.13, 4.7.17, 4.6.18, 4.5.21, 4.4.22, 4.3.23, 4.2.27, 4.1.30, 4.0.30, 3.9.31, 3.8.33, 3.7.33).
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2020-11026
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-3gw2-4656-pfr2
- https://www.debian.org/security/2020/dsa-4677
- https://wordpress.org/support/wordpress-version/version-5-4-1/#security-updates
- https://lists.debian.org/debian-lts-announce/2020/05/msg00011.html