Stored Cross-Site Scripting in WordPress File Sharing Plugin by WordPress
CVE-2023-4636

4.8MEDIUM

Key Information:

Vendor
Wordpress
Status
WordPress File Sharing Plugin
Vendor
CVE Published:
5 September 2023

Badges

👾 Exploit Exists🟡 Public PoC

Summary

The WordPress File Sharing Plugin is susceptible to Stored Cross-Site Scripting due to inadequate input sanitization and output escaping in the admin settings. This vulnerability allows authenticated attackers with administrator-level permissions to inject malicious web scripts that execute upon user access to affected pages. It primarily impacts multi-site installations and those where unfiltered_html has been disabled, heightening the risk for site administrators and users.

Affected Version(s)

WordPress File Sharing Plugin * <= 2.0.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-4636
Created by ThatNotEasy

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://github.com/xsn1210/vul2/blob/main/xss%5BWordPress...
https://plugins.trac.wordpress.org/changeset/2961909/user...

CVSS V3.1

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
Required
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Shuning Xu
.