Ultimate Blocks Plugin Vulnerable to Stored CSSS Attacks
CVE-2024-4655

5.4MEDIUM

Key Information:

Vendor
Wordpress
Status
Ultimate Blocks
Vendor
CVE Published:
11 July 2024

Badges

👾 Exploit Exists🟡 Public PoC

Summary

The Ultimate Blocks WordPress plugin before 3.1.9 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

Affected Version(s)

Ultimate Blocks 0 < 3.1.9

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-2024-4655 - Proof of Concept

References

https://wpscan.com/vulnerability/a0dc73b3-3c51-4d03-963f-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dmitrii Ignatyev
WPScan
.