WordPress Plugin Vulnerabilities

ActivityPub for WordPress < 1.0.0 - Contributor+ Stored XSS

Description

The plugin does not escape user metadata before outputting them in mentions, which could allow users with a role of Contributor and above to perform Stored XSS attacks

Proof of Concept

As a contributor, put the following payload in a post (the payload will have to be updated accordingly to watch the correct user and domain)

ahoy hoy @user@malicious-activitypub.site

The XSS will be trigged when viewing/previewing the post

Affects Plugins

Fixed in 1.0.0

References

Classification

Type
XSS
CWE

Miscellaneous

Original Researcher
Ben Bidner
Verified
Yes

Timeline

Publicly Published
2023-09-25 (about 7 months ago)
Added
2023-09-25 (about 7 months ago)
Last Updated
2023-09-25 (about 7 months ago)

Other