CVE-2021-24543 jQuery Reply to Comment <= 1.31 - CSRF to Stored Cross-Site Scripting
Attackers can inject malicious scripts via unsanitized settings, leading to stored XSS and potential session hijacking in the jQuery Reply to Comment plugin.
- 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-2021-24543?
CVE-2021-24543 is a medium-severity cross-site scripting vulnerability in Unknown jQuery Reply to Comment, published on 25 Oct 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 jQuery Reply to Comment WordPress plugin through 1.31 does not have any CSRF check when saving its settings, nor sanitise or escape its 'Quote String' and 'Reply String' settings before outputting them in Comments, leading to a Stored Cross-Site Scripting issue.
Which versions are affected by CVE-2021-24543?
It affects 1 product.
Products include Jquery-Reply-to-Comment Project Jquery-Reply-to-Comment.
How do I fix CVE-2021-24543?
No fix has been published for CVE-2021-24543 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-2021-24543 being exploited?
There is no known exploitation of CVE-2021-24543 in the wild and no public exploit code.
Sources
Also known as GHSA-c2qq-rpxf-6qmx.