WordPress Plugin Vulnerabilities
Ad Inserter 2.8.12 - 2.8.18 - Subscriber+ RCE / Stored XSS via Global Custom Fields
Description
The plugin does not correctly restrict access to one of its settings pages, making it reachable by every logged in user under a configuration its own settings allow, and does not filter the content saved there, allowing users with a role as low as subscriber to store code which is then executed as PHP or served unescaped to site visitors.
Proof of Concept
Affects Plugins
Fixed in 2.8.19 References
CVE
Classification
Type
RCE
OWASP top 10
CWE
CVSS
Miscellaneous
Original Researcher
Jakub Herman
Submitter
Jakub Herman
Submitter website
Verified
Yes
WPVDB ID
Timeline
Publicly Published
2026-09-25 (about 2 days ago)
Added
2026-09-25 (about 1 day ago)
Last Updated
2026-09-26 (about 8 hours ago)
