CVE-2024-9645 Post Grid and Gutenberg Blocks < 2.2.93 - Contributor+ Stored XSS

What is CVE-2024-9645?

CVE-2024-9645 is a medium-severity cross-site scripting vulnerability in Unknown Post Grid, Posts Slider, Posts Carousel, Post Filter, Post Masonry, published on 15 May 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The Post Grid, Posts Slider, Posts Carousel, Post Filter, Post Masonry WordPress plugin before 2.2.93 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.

Weakness: CWE-79

Which versions are affected by CVE-2024-9645?

It affects 1 product.

Products include Pickplugins Post Grid.

How do I fix CVE-2024-9645?

No fix has been published for CVE-2024-9645 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2024-9645 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-9645 exists.

Other vulnerabilities in Unknown Post Grid, Posts Slider, Posts Carousel, Post Filter, Post Masonry

• CVE-2021-4450 Post Grid <= 2.1.12 - Contributor+ SQL Injection High 8.8
• CVE-2024-8253 Post Grid and Gutenberg Blocks 2.2.87 - 2.2.90 - Authenticated (Subscriber+) Privilege Escalation High 8.8
• CVE-2024-13408 Path traversal in Post Grid, Slider & Carousel Ultimate – with Shortcode, Gutenberg Block & Elementor Widget High 7.5
• CVE-2020-35936 Cross-site scripting in n/a High 7.5
• CVE-2020-35937 Cross-site scripting in n/a High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-w4w8-5w5f-5gvr.