WordPress Plugin Vulnerabilities
CoolClock < 4.3.8 - Contributor+ Stored XSS via Custom Skin JSON
Description
The plugin 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.
Proof of Concept
Affects Plugins
Fixed in 4.3.8 References
CVE
Classification
Type
XSS
OWASP top 10
CWE
CVSS
Miscellaneous
Original Researcher
Philipp Doblhofer
Submitter
Philipp Doblhofer
Submitter website
Verified
Yes
WPVDB ID
Timeline
Publicly Published
2026-09-08 (about 2 days ago)
Added
2026-09-01 (about 9 days ago)
Last Updated
2026-09-02 (about 8 days ago)
WPScan 