WordPress Plugin Vulnerabilities

CoolClock < 4.3.8 - Contributor+ Stored XSS via Skin Class Attribute

Description

The plugin does not properly escape a skin setting before outputting it within an HTML attribute, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when the content is viewed.

Proof of Concept

Affects Plugins

Fixed in 4.3.8

References

Classification

Type
XSS
CWE

Miscellaneous

Original Researcher
Philipp Doblhofer
Submitter
Philipp Doblhofer
Submitter website
Verified
Yes

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)

Other