WordPress Plugin Vulnerabilities

Duplicate Page < 4.4.3 - Admin+ Stored Cross-Site Scripting

Description

The plugin does not sanitise or escape the Duplicate Post Suffix settings before outputting it, which could allow high privilege users to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

The attempt to fix the issue in 4.4.2 is insufficient and still allows for XSS.

Proof of Concept

Put the following payload in the Duplicate Post Suffix setting of the plugin:
- v < 4.4.2: "><svg/onload=confirm(/XSS/)>
- v < 4.4.3: " style=animation-name:rotation onanimationstart=alert(/XSS/)//

Affects Plugins

Fixed in 4.4.3

References

Exploitdb

Classification

Type
XSS
CWE
CVSS

Miscellaneous

Original Researcher
Nikhil Kapoor from EsecForte
Submitter
Nikhil Kapoor from EsecForte
Verified
Yes

Timeline

Publicly Published
2021-08-28 (about 2 years ago)
Added
2021-09-07 (about 2 years ago)
Last Updated
2023-01-30 (about 1 years ago)

Other