WordPress Plugin Vulnerabilities
JCH Optimize < 6.0.1 - Subscriber+ Stored XSS via getcacheinfo Task Override
Description
The plugin does not perform a capability check on one of its authenticated AJAX actions and lets the request choose which internal action runs, allowing any authenticated users such as Subscribers to import arbitrary plugin settings and store a script that executes in the browser of any visitor or administrator viewing the site.
Proof of Concept
Affects Plugins
References
CVE
Classification
Type
XSS
OWASP top 10
CWE
CVSS
Miscellaneous
Original Researcher
Artus KG
Submitter
Artus KG
Submitter twitter
Verified
Yes
WPVDB ID
Timeline
Publicly Published
2026-09-03 (about 2 days ago)
Added
2026-09-03 (about 1 day ago)
Last Updated
2026-09-04 (about 8 hours ago)