CVE-2026-42150
MEDIUMwlc: print_html outputs API data without HTML escaping, enabling stored XSS
Title source: cnaDescription
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.
References (4)
Core 4
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/WeblateOrg/wlc/security/advisories/GHSA-gx2m-mcc2-r4p3
X_Refsource_Misc x_refsource_misc
https://github.com/WeblateOrg/wlc/pull/1327
X_Refsource_Misc x_refsource_misc
https://github.com/WeblateOrg/wlc/commit/0f3e58f6d7457b05d48ef40f579a172c4c8b8469
X_Refsource_Misc x_refsource_misc
https://github.com/WeblateOrg/wlc/releases/tag/2.0.0
Scores
CVSS v3
5.1
EPSS
0.0004
EPSS Percentile
10.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (3)
pypi/wlc
0 - 2.0.0PyPI
weblate/wlc
< 2.0.0
WeblateOrg/wlc
< 2.0.0
Published
May 08, 2026
Tracked Since
May 08, 2026