CVE-2024-5488

The SEOPress WordPress plugin before 7.9 does not properly protect some of its REST API routes, which combined with another Object Injection vulnerability can allow unauthenticated attackers to unserialize malicious gadget chains, compromising the site if a suitable chain is present.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Potential Mitigations

• Make fields transient to protect them from deserialization.
• An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/586.html

References

• https://wpscan.com/vulnerability/28507376-ded0-4e1a-b2fc-2182895aa14c/
• https://wpscan.com/vulnerability/28507376-ded0-4e1a-b2fc-2182895aa14c/