WordPress Plugin Vulnerabilities

Post SMTP < 2.1.4 - Admin+ Stored Cross-Site Scripting

Description

The plugin does not escape some of its settings before outputting them in the admins dashboard, allowing high privilege users to perform Cross-Site Scripting attacks against other users even when the unfiltered_html capability is disallowed.

Proof of Concept

Put the following payload in the Post SMTP > Settings > Advanced > "Temporary Directory" settings: /tmp" style=animation-name:rotation onanimationstart=alert(/XSS/)//

Affects Plugins

Fixed in 2.1.4

References

Classification

Type
XSS
CWE
CVSS

Miscellaneous

Original Researcher
Raad Haddad of Cloudyrion GmbH
Submitter
Raad Haddad of Cloudyrion GmbH
Submitter twitter
Verified
Yes

Timeline

Publicly Published
2022-08-22 (about 1 years ago)
Added
2022-08-22 (about 1 years ago)
Last Updated
2023-05-11 (about 1 years ago)

Other