WordPress Plugin Vulnerabilities
PostX < 4.0.2 - Contributor+ Stored XSS
Description
The plugin does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks
Proof of Concept
1. Create a new Post and add "Ultimate post Heading" block. Change "headingURL" field to `123" onmouseover=alert(1)//` 2. Browse the post and hover over the heading.
Affects Plugins
Fixed in 4.0.2 References
Classification
Type
XSS
OWASP top 10
CWE
Miscellaneous
Original Researcher
Dmitrii Ignatyev
Submitter
Dmitrii Ignatyev
Submitter website
Verified
Yes
WPVDB ID
Timeline
Publicly Published
2024-04-22 (about 28 days ago)
Added
2024-04-22 (about 28 days ago)
Last Updated
2024-04-26 (about 23 days ago)
WPScan 