CVE-2024-4838 ConvertPlus <= 3.5.26 - Authenticated (Contributor+) PHP Object Injection
Authenticated attackers can exploit PHP object injection in ConvertPlus to potentially execute code or access data if a POP chain exists.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-4838?
CVE-2024-4838 is a high-severity unsafe deserialization vulnerability in Brainstorm Force ConvertPlus, published on 16 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The ConvertPlus plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.5.26 via deserialization of untrusted input from the 'settings_encoded' attribute of the 'smile_modal' shortcode. This makes it possible for authenticated attackers, with contributor-level access and above, to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
Weakness: CWE-502
Which versions are affected by CVE-2024-4838?
How do I fix CVE-2024-4838?
No fix has been published for CVE-2024-4838 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-2024-4838 being exploited?
There is no known exploitation of CVE-2024-4838 in the wild and no public exploit code.
Sources
Also known as GHSA-43c9-25jg-rxm4.