CVE-2026-42150

wlc: print_html outputs API data without HTML escaping, enabling stored XSS

Published May 8, 2026 CVSS 3.1 · 5.1 Medium EPSS < 1% KEV · Not listed
Description
wlc is a Weblate command-line client using Weblate's REST API. Prior to version 2.0.0, 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. This issue has been patched in version 2.0.0.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-gx2m-mcc2-r4p3 wlc: print_html outputs API data without HTML escaping
History
Type Values Removed Values Added
First Time appeared Weblate
Weblate wlc
CPEs cpe:2.3:a:weblate:wlc:*:*:*:*:*:*:*:*
Vendors & Products Weblate
Weblate wlc
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Weblateorg
Weblateorg wlc
Vendors & Products Weblateorg
Weblateorg wlc
Type Values Removed Values Added
Description wlc is a Weblate command-line client using Weblate's REST API. Prior to version 2.0.0, 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. This issue has been patched in version 2.0.0.
Title wlc: print_html outputs API data without HTML escaping, enabling stored XSS
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 5.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
May 8, 2026, 9:28 PM
Reserved
Apr 24, 2026, 5:15 PM
Status
Analyzed
Published
May 8, 2026, 4:16 AM
Modified
Oct 26, 2026, 8:10 PM