WordPress Plugin Vulnerabilities

Anti-Malware Security and Brute-Force Firewall < 4.23.88 - Contributor+ PHP Object Injection

Description

The plugin is vulnerable to PHP Object Injection via deserialization of untrusted input, allowing authenticated attackers with Contributor-level access and above to inject a PHP Object. No known POP chain is present in the vulnerable software. 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.

Affects Plugins

Fixed in 4.23.88

References

Classification

Type
OBJECT INJECTION
CWE

Miscellaneous

Original Researcher
daroo
Verified
No

Timeline

Publicly Published
2026-04-20 (about 2 months ago)
Added
2026-05-04 (about 1 month ago)
Last Updated
2026-05-04 (about 1 month ago)

Other