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Vulnerability record · CVE-2026-42150 · published 8 May 2026

CVE-2026-42150: Weblate wlc cross-site scripting vulnerability

Weblate · Wlc

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.

4.8 CVSS 3.1 Medium EPSS 0.30% · top 79.4% CWE-79 · Cross-site scripting
4.8CVSS 3.1 base score
0.30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/WeblateOrg/wlc/commit/0f3e58f6d7457b05d48ef40f579a172c4c8b8469 Patch
https://github.com/WeblateOrg/wlc/pull/1327 Issue TrackingPatch
https://github.com/WeblateOrg/wlc/releases/tag/2.0.0 Release Notes
https://github.com/WeblateOrg/wlc/security/advisories/GHSA-gx2m-mcc2-r4p3 Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-42150), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.