Weblate: Stored HTML injection in editor search preview
Priority LOW 21CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00208 10th percentileScored 2026-11-07
Fix Fixed weblate (WeblateOrg): 2026.5weblate (PyPI): 2026.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| WeblateOrg | weblate | before 2026.5 | 2026.5 | Patch available | CNA |
| — | weblate (PyPI) | before 2026.5 | 2026.5 | Patch available | GHSA-6wxc-8mgq-w26m |
- weblate VendorWeblateOrg Affected before 2026.5 Fixed in 2026.5 Patch available CNA
- weblate (PyPI) Vendor— Affected before 2026.5 Fixed in 2026.5 Patch available GHSA-6wxc-8mgq-w26m
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:weblate:weblate:*:*:*:*:*:*:*:* | — | — | WeblateOrg |
- cpe:2.3:a:weblate:weblate:*:*:*:*:*:*:*:* Versions — — ·WeblateOrg
Remediation
- Fix · CNA weblate (WeblateOrg) Fixed in 2026.5
- Fix · GHSA-6wxc-8mgq-w26m weblate (PyPI) Fixed in 2026.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-45106
- 2026-10-03 Alias added: GHSA-6wxc-8mgq-w26m
References
Other 5
- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-6wxc-8mgq-w26m
- https://github.com/WeblateOrg/weblate/pull/19422
- https://github.com/WeblateOrg/weblate/releases/tag/weblate-2026.5
- https://github.com/WeblateOrg/weblate/commit/8b0adf1d0b43dfc0d09da4b878857b2288b84f2d
- https://github.com/WeblateOrg/weblate
More WeblateOrg vulnerabilities
- TI-2025-23145 Weblate VCS credentials included in URL parameters are potentially logged and saved into browser history as plaintext CVSS 3.1HIGH 7.5
- TI-2025-38033 Weblate integration with Anubis can lead to Open Redirect via redir parameter CVSS 4.0LOW 2.1
- TI-2022-07893 Remote code execution (RCE) in Weblate CVSS 3.1HIGH 8.8
- TI-2025-41967 Weblate has git config file overwrite vulnerability that leads to remote code execution CVSS 3.1CRITICAL 9.1
- TI-2026-26679 Weblate: Privilege escalation in the user API endpoint CVSS 3.1HIGH 8.8
- TI-2026-19444 Weblate has an argument injection in management console CVSS 3.1CRITICAL 9.1
Sources
- CVE-2026-45106 · CVE Program
- CVE-2026-45106 · NVD
- FIRST EPSS
- GHSA-6wxc-8mgq-w26m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences