CVE-2026-42150

MEDIUM 5.1

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

CVSS Score

5.1

EPSS Score

0.0%

EPSS Percentile

9th

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.

CWE	CWE-79
Vendor	weblateorg
Product	wlc
Published	May 8, 2026
Last Updated	May 8, 2026

Stay Ahead of the Next One

Get instant alerts for weblateorg wlc

Be the first to know when new medium vulnerabilities affecting weblateorg wlc are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Affected Versions

WeblateOrg / wlc

< 2.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/WeblateOrg/wlc/security/advisories/GHSA-gx2m-mcc2-r4p3 github.com: https://github.com/WeblateOrg/wlc/pull/1327 github.com: https://github.com/WeblateOrg/wlc/commit/0f3e58f6d7457b05d48ef40f579a172c4c8b8469 github.com: https://github.com/WeblateOrg/wlc/releases/tag/2.0.0