CVE-2024-13645 TagDiv Composer <= 5.3 - Unauthenticated Arbitrary PHP Object Instantiation
Unauthenticated attackers can instantiate PHP objects via the module parameter, potentially leading to code execution or data access if a POP chain exists.
- 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-2024-13645?
CVE-2024-13645 is a critical unsafe deserialization vulnerability in tagDiv Composer, published on 4 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The tagDiv Composer plugin for WordPress is vulnerable to PHP Object Instantiation in all versions up to, and including, 5.3 via module parameter. This makes it possible for unauthenticated attackers to Instantiate a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
Weakness: CWE-94
Which versions are affected by CVE-2024-13645?
How do I fix CVE-2024-13645?
No fix has been published for CVE-2024-13645 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2024-13645 being exploited?
There is no known exploitation of CVE-2024-13645 in the wild and no public exploit code.
Sources
Also known as GHSA-8mmw-qfv3-2mgw.