WP Postratings < 1.86.1 - Admin+ Stored Cross-Site Scripting
CVE-2021-25117

4.8MEDIUM

Key Information:

Vendor
Wordpress
Status
WP-postratings
Vendor
CVE Published:
16 January 2024

Badges

👾 Exploit Exists🟡 Public PoC

Summary

The WP-PostRatings plugin for WordPress versions prior to 1.86.1 contains a vulnerability that arises from a lack of proper sanitization for the postratings_image parameter within its options page. This issue permits potential malicious exploitation, especially when the unfiltered_html capability is enabled for non-admin users or if they are able to manipulate data before it reaches the intended endpoints. Although access to the affected dashboard is limited to administrators and includes basic CSRF protections, the failure to sanitize this parameter can lead to serious ramifications if exploited. Site owners using this plugin should update to the latest version to mitigate any potential risks associated with this input validation flaw.

Affected Version(s)

WP-PostRatings 0 < 1.86.1

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-2021-25117 - Proof of Concept

References

https://wpscan.com/vulnerability/d2d9a789-edae-4ae1-92af-...
exploitvdb-entrytechnical-description

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

Park Won Seok
WPScan
.