Stored Cross-Site Scripting Vulnerability in Post Grid Plugin by WordPress
CVE-2024-9645

5.4MEDIUM

Key Information:

Vendor

WordPress
Status
Post Grid, Posts Slider, Posts Carousel, Post Filter, Post Masonry
Vendor
CVE Published:
15 May 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2024-9645?

The Post Grid, Posts Slider, Posts Carousel, Post Filter, and Post Masonry plugins from WordPress are vulnerable due to improper validation and escaping of block options before rendering on pages or posts. This flaw allows users with contributor roles and above to potentially execute Stored Cross-Site Scripting attacks, compromising the security of the site and its users by injecting malicious scripts.

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Deploy the Patch

Affected Version(s)

Post Grid, Posts Slider, Posts Carousel, Post Filter, Post Masonry 0 < 2.2.93

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-2024-9645 - Proof of Concept

References

https://wpscan.com/vulnerability/cfd6db83-5e7f-4631-87c3-...
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
JSON
.