Vulnerability · Published May 7, 2026 · Assigned by GitHub_M
CVE-2026-44264Weblate is vulnerable to XSS via crafted Markdown
Medium 4.3
In plain English
A medium-severity security flaw in weblate from WeblateOrg. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 80.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | weblate | 5.17.1 | GHSA-5cmv-3rc4-7279 |
| PyPI | weblate | 5.17.1 | PYSEC-2026-2319 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WeblateOrg | weblate | < 5.17.1 |
Weakness: CWE-80 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
References
- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-5cmv-3rc4-7279 x_refsource_CONFIRM
- https://github.com/WeblateOrg/weblate/pull/19259 x_refsource_MISC
- https://github.com/WeblateOrg/weblate/commit/85abc9df88b7464f4c0e794aef752e45f4230f75 x_refsource_MISC
- https://github.com/WeblateOrg/weblate/releases/tag/weblate-5.17.1 x_refsource_MISC