CVE-2024-13926 WP-Syntax <= 1.2 - Author+ Potential ReDoS
An attacker can cause a denial of service by submitting posts with many tags, exploiting regex backtracking in the WP-Syntax plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-13926?
CVE-2024-13926 is a high-severity denial of service vulnerability in Unknown WP-Syntax, published on 19 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The WP-Syntax WordPress plugin through 1.2 does not properly handle input, allowing an attacker to create a post containing a large number of tags, thereby exploiting a catastrophic backtracking issue in the regular expression processing to cause a DoS.
Weakness: CWE-1333
Which versions are affected by CVE-2024-13926?
It affects 1 product.
Products include Connections-Pro Wp-Syntax.
How do I fix CVE-2024-13926?
No fix has been published for CVE-2024-13926 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-13926 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-13926 exists.
Sources
Also known as GHSA-p6jq-9gcc-mcvx.