GHSA-5cmv-3rc4-7279
Weblate vulnerable to XSS via crafted Markdown
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
The Markdown renderer used in user comments and other user-provided content didn't properly sanitize some attributes.
### Patches
* https://github.com/WeblateOrg/weblate/pull/19259
### Workarounds
Even though the attacker might be able to inject code into the HTML, the Weblate's strict CSP should mitigate the risks.
### Acknowlegement
Michal Čihař has identified and fixed this vulnerability.
References
External links from the advisory. They lead to third-party sites.
- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-5cmv-3rc4-7279
- https://nvd.nist.gov/vuln/detail/CVE-2026-44264
- https://github.com/WeblateOrg/weblate/pull/19259
- https://github.com/WeblateOrg/weblate/commit/85abc9df88b7464f4c0e794aef752e45f4230f75
- https://github.com/WeblateOrg/weblate
- https://github.com/WeblateOrg/weblate/releases/tag/weblate-5.17.1