Weblate: Stored HTML injection in editor search preview
Impact
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.
Patches
Workarounds
Only the search preview on the selected views is affected.
Resources
Weblate thanks @adrgs for reporting this issue responsibly via GitHub.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | weblate | < 2026.5 | 2026.5 |
References
- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-6wxc-8mgq-w26m
- https://nvd.nist.gov/vuln/detail/CVE-2026-45106
- https://github.com/WeblateOrg/weblate/pull/19422
- https://github.com/WeblateOrg/weblate/commit/8b0adf1d0b43dfc0d09da4b878857b2288b84f2d
- https://github.com/WeblateOrg/weblate
- https://github.com/WeblateOrg/weblate/releases/tag/weblate-2026.5
- https://pypi.org/project/weblate
- https://github.com/advisories/GHSA-6wxc-8mgq-w26m
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- Python (PyPI)
- Package
weblate- Disclosed
- 15.05.2026
- Updated
- 11.10.2026 14:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-3415 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-6wxc-8mgq-w26m - CC BY 4.0
Vulnerability history: weblate
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 36
- First → latest
- 03.2017 08.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 6
- Medium 22
- Low 7
Disclosures per year
- 2017: 1
- 2018: 0
- 2019: 0
- 2020: 0
- 2021: 0
- 2022: 1
- 2023: 0
- 2024: 1
- 2025: 12
- 2026: 21
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