CoolClock < 4.3.8 - Contributor+ Stored XSS via Custom Skin JSON

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-83545
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-11 07:16:46 UTC
Updated2026-09-11 07:16:46 UTC
DescriptionThe CoolClock WordPress plugin before 4.3.8 does not properly escape a custom skin setting before outputting it inside an inline script, allowing users with contributor-level access and above to inject arbitrary JavaScript that executes when the content is viewed.

Risk And Classification

Problem Types: CWE-79 Cross-Site Scripting (XSS)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown CoolClock affected 4.3.8 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/d331d834-08f7-46e2-859a-7b797213ad0b [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Philipp Doblhofer (en)

CNA: WPScan (en)

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