wlc: print_html outputs API data without HTML escaping, enabling stored XSS
Published May 8, 2026
5.1
MEDIUMCVSS 3.1
EPSS 0.30%
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.
Affected products
-
- Version < 2.0.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| WeblateOrg | Wlc | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
1 other source (GHSA) ▾
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:L
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed May 8, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
May–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.30% (0.00303) | 20.78th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.17% (0.00174) | 7.03th | v5 (v2026.06.15) |
| May 8, 2026 | 0.03% (0.00032) | 9.42th | v4 (v2025.03.14) |
References (6)
- https://github.com/WeblateOrg/wlc/commit/0f3e58f6d7457b05d48ef40f579a172c4c8b8469 x_refsource_MISCPatch
- https://github.com/WeblateOrg/wlc/pull/1327 x_refsource_MISCIssue TrackingPatch
- https://github.com/WeblateOrg/wlc/releases/tag/2.0.0 x_refsource_MISCRelease Notes
- https://github.com/WeblateOrg/wlc/security/advisories/GHSA-gx2m-mcc2-r4p3 x_refsource_CONFIRMVendor Advisory
- https://github.com/advisories/GHSA-gx2m-mcc2-r4p3 Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-42150
| Link | Providers | Tags |
|---|---|---|
| https://github.com/WeblateOrg/wlc/commit/0f3e58f6d7457b05d48ef40f579a172c4c8b8469 | x_refsource_MISCPatch | |
| https://github.com/WeblateOrg/wlc/pull/1327 | x_refsource_MISCIssue TrackingPatch | |
| https://github.com/WeblateOrg/wlc/releases/tag/2.0.0 | x_refsource_MISCRelease Notes | |
| https://github.com/WeblateOrg/wlc/security/advisories/GHSA-gx2m-mcc2-r4p3 | x_refsource_CONFIRMVendor Advisory | |
| https://github.com/advisories/GHSA-gx2m-mcc2-r4p3 | Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2026-42150 |
Change history (0)
No recorded changes yet.