CVE-2021-24488 Post Grid < 2.1.8 - Reflected Cross-Site Scripting (XSS)
Reflected XSS in Post Grid plugin allows attackers to execute arbitrary scripts via unsanitized slider import search and tab parameters.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-24488?
CVE-2021-24488 is a medium-severity cross-site scripting vulnerability in Unknown Post Grid, published on 2 Aug 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The slider import search feature and tab parameter of the Post Grid WordPress plugin before 2.1.8 settings are not properly sanitised before being output back in the pages, leading to Reflected Cross-Site Scripting issues
Weakness: CWE-79
Which versions are affected by CVE-2021-24488?
It affects 1 product.
Products include Pickplugins Post Grid.
How do I fix CVE-2021-24488?
No fix has been published for CVE-2021-24488 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-2021-24488 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-24488 exists.
Public exploit code: 1 Exploit-DB entry and 1 Nuclei template.
Other vulnerabilities in Unknown Post Grid
- CVE-2021-4450 Post Grid <= 2.1.12 - Contributor+ SQL Injection
- CVE-2024-8253 Post Grid and Gutenberg Blocks 2.2.87 - 2.2.90 - Authenticated (Subscriber+) Privilege Escalation
- CVE-2024-13408 Path traversal in Post Grid, Slider & Carousel Ultimate – with Shortcode, Gutenberg Block & Elementor Widget
- CVE-2020-35936 Cross-site scripting in n/a
- CVE-2020-35937 Cross-site scripting in n/a
Sources
Also known as GHSA-grvg-w4gv-9v46.