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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

post-smtp
Fixed in version 2.1.4

References

CVE
CVE-2022-2351

Classification

Type

XSS

OWASP top 10
A7: Cross-Site Scripting (XSS)
CWE
CWE-79

Miscellaneous

Original Researcher

Raad Haddad of Cloudyrion GmbH

Submitter

Raad Haddad of Cloudyrion GmbH

Submitter twitter
raadfhaddad
Verified

Yes

WPVDB ID
f3fda033-58f5-446d-ade4-2336a39bfb87

Timeline

Publicly Published

2022-08-22 (about 9 months ago)

Added

2022-08-22 (about 9 months ago)

Last Updated

2023-05-11 (about 23 days ago)

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