CVE-2026-44264 PUBLISHED

Weblate is vulnerable to XSS via crafted Markdown

Assigner: GitHub_M
Reserved: 05.05.2026 Published: 07.05.2026 Updated: 07.05.2026

Weblate is a web based localization tool. Prior to version 5.17.1, the Markdown renderer used in user comments and other user-provided content didn't properly sanitize some attributes. This issue has been patched in version 5.17.1.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS Score: 4.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	Low	Integrity Impact	Low
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	WeblateOrg
Product	weblate
Versions	Version < 5.17.1 is affected

References

https://github.com/WeblateOrg/weblate/security/advisories/GHSA-5cmv-3rc4-7279
https://github.com/WeblateOrg/weblate/pull/19259
https://github.com/WeblateOrg/weblate/commit/85abc9df88b7464f4c0e794aef752e45f4230f75
https://github.com/WeblateOrg/weblate/releases/tag/weblate-5.17.1

Problem Types

CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) CWE