CVE-2026-42150

Name: CVE-2026-42150
Creator: NVD / NIST
Published: 2026-05-08T04:16:18.92+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.8/10EPSS 0.17%

Last modified Jun 17, 2026

CVE-2026-42150 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. 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. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.8/10

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

EPSS Probability

0.17%

7.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Weblate	Wlc	< 2.0.0

References

https://github.com/WeblateOrg/wlc/commit/0f3e58f6d7457b05d48ef40f579a172c4c8b8469Patch
https://github.com/WeblateOrg/wlc/pull/1327Issue Tracking, Patch
https://github.com/WeblateOrg/wlc/releases/tag/2.0.0Release Notes
https://github.com/WeblateOrg/wlc/security/advisories/GHSA-gx2m-mcc2-r4p3Vendor Advisory

Timeline

Published: May 8, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-42150?

How severe is CVE-2026-42150?

CVE-2026-42150 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.

How do I fix CVE-2026-42150?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-42150?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST