Vulnerability · Published Jun 10, 2026 · Assigned by GitHub_M

CVE-2026-45106Weblate: Stored HTML injection in editor search preview

Medium 4.6

In plain English

A medium-severity cross-site scripting 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 0.2% (higher than 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.6Medium

Exploit odds (30 days)0.2%top 89.0% 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 2026.5, Weblate's live search preview renders unit source and context as HTML without escaping. Any contributor whose content reaches those fields stores HTML and CSS that runs inside the authenticated editor of every user who runs a matching search. This issue has been patched in version 2026.5.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	weblate	2026.5	GHSA-6wxc-8mgq-w26m
PyPI	weblate	2026.5	PYSEC-2026-3415

Affected products (as reported)

Vendor	Product	Versions
WeblateOrg	weblate	< 2026.5

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

References

https://github.com/WeblateOrg/weblate/security/advisories/GHSA-6wxc-8mgq-w26m x_refsource_CONFIRM
https://github.com/WeblateOrg/weblate/pull/19422 x_refsource_MISC
https://github.com/WeblateOrg/weblate/releases/tag/weblate-2026.5 x_refsource_MISC