Stored Cross-Site Scripting in User Submitted Posts for WordPress
CVE-2023-4308

7.2HIGH

Key Information:

Vendor

WordPress
Status
User Submitted Posts – Enable Users To Submit Posts From The Front End
Vendor
CVE Published:
15 August 2023

What is CVE-2023-4308?

The User Submitted Posts plugin in WordPress has a vulnerability that allows for Stored Cross-Site Scripting attacks via the ‘user-submitted-content’ parameter. This flaw arises from inadequate input sanitization and output escaping mechanisms implemented in versions up to and including 20230809. As a result, attackers without authentication can inject malicious web scripts that execute when users visit affected pages, potentially compromising the integrity of user environments.

Affected Version(s)

User Submitted Posts – Enable Users to Submit Posts from the Front End * <= 20230809

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset/2952471/user...

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

NGÔ THIÊN AN
.
The Cyber Security Vulnerability Database.