PatchTheCVECVE-2026-42150: wlc is a Weblate command-line client using Weblate's REST API
CVE-2026-42150 is a medium-severity flaw (CVSS 5.1) affecting wlc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.1 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | High |
| User interaction | Required |
| EPSS exploit chance | 0.2% (top 93%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2026-05-08 |
| Last modified | 2026-10-26 |
Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-42150?
wlc: upgrade to 2.0.0. Exact commands for each OS are on this page.
Is CVE-2026-42150 being exploited?
CVE-2026-42150 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-42150 affect?
CVE-2026-42150 affects wlc. Severity is medium (CVSS 5.1). 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
How urgent is CVE-2026-42150?
Priority 20/100. No elevated risk signals yet.