Medium 5.1Published May 7, 2026

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

Updated under an hour ago (Oct 25, 2026, 11:23 PM ET)

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It affects WeblateOrg wlc and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for WeblateOrg wlc

Exploited in the last 30 days

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: 5.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:L
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: May 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

WeblateOrg wlc weblateorg:wlc (from the name)	before 2.0.0	CNA record
weblate wlc weblate:wlc	before 2.0.0	NVD

References

https://github.com/WeblateOrg/wlc/security/advisories/GHSA-gx2m-mcc2-r4p3x-refsource-confirm, vendor-advisory
https://github.com/WeblateOrg/wlc/pull/1327x-refsource-misc, issue-tracking, patch
https://github.com/WeblateOrg/wlc/commit/0f3e58f6d7457b05d48ef40f579a172c4c8b8469x-refsource-misc, patch
https://github.com/WeblateOrg/wlc/releases/tag/2.0.0x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.