WordPress Plugin Vulnerabilities

Page Builder Gutenberg Blocks < 3.1.7 - 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

Create/Edit a Post, add an "Icon" block and put the following payload in the "Link Settings > Link URL: " field: 123" onmouseover='alert(/XSS/)'

The XSS will be triggered when viewing/previewing the post and moving the mouse over the icon

Affects Plugins

Fixed in 3.1.7

References

Classification

Type
XSS
CWE

Miscellaneous

Original Researcher
Dmitrii Ignatyev
Submitter
Dmitrii Ignatyev
Submitter website
Verified
Yes

Timeline

Publicly Published
2024-03-12 (about 2 months ago)
Added
2024-03-12 (about 2 months ago)
Last Updated
2024-03-27 (about 1 months ago)

Other