CVE-2026-44264

MEDIUM4.3EPSS 0.01%

Weblate vulnerable to XSS via crafted Markdown

Published: 5/7/2026Modified: 5/8/2026

Description

### 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.

Affected packages (1)

PyPI/weblatefrom 0, < 5.17.1

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References (6)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-44264
PATCHhttps://github.com/WeblateOrg/weblate
WEBhttps://github.com/WeblateOrg/weblate/commit/85abc9df88b7464f4c0e794aef752e45f4230f75
WEBhttps://github.com/WeblateOrg/weblate/pull/19259
WEBhttps://github.com/WeblateOrg/weblate/releases/tag/weblate-5.17.1
WEBhttps://github.com/WeblateOrg/weblate/security/advisories/GHSA-5cmv-3rc4-7279