weblateorg/wlc · Security
wlc: print_html outputs API data without HTML escaping
- GHSA ID
- GHSA-gx2m-mcc2-r4p3
- CVE ID
- CVE-2026-42150
- Severity
- medium
- Published
- Updated
- CVSS
- 5.1 · CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:L
- CVSS v3
- 5.1 · CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:L
Description
Impact
The HTML output format in wlc embeds API response data into HTML without escaping, allowing cross-site scripting when the output is rendered in a browser.
Patches
Workarounds
The only vulnerable code path is HTML output which is opt-in.
References
Weblate thanks @fg0x0 for reporting this on GitHub.
CWEs
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
- https://github.com/WeblateOrg/wlc/security/advisories/GHSA-gx2m-mcc2-r4p3 ↗
- https://github.com/WeblateOrg/wlc/pull/1327 ↗
- https://github.com/WeblateOrg/wlc/commit/0f3e58f6d7457b05d48ef40f579a172c4c8b8469 ↗
- https://nvd.nist.gov/vuln/detail/CVE-2026-42150 ↗
- https://github.com/WeblateOrg/wlc/releases/tag/2.0.0 ↗
- https://github.com/advisories/GHSA-gx2m-mcc2-r4p3 ↗