CVE-2026-42150 MEDIUM

CVE-2026-42150: wlc: print_html outputs API data without HTML escaping, enabling stored XSS

Vendor Weblateorg
Product wlc
Weakness CWE-79 · XSS
Published May 8, 2026
Last update May 8, 2026
View on NVD All CVEs

CVSS base score

5.1/10
Attack vector Network
Attack complexity High
Privileges required High
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 8, 2026 CVE published
May 8, 2026 Record updated