Executive brief
Buddyboss Platform is a popular WordPress plugin used to build online communities and social networking sites. A critical security flaw allows an attacker to inject malicious code into the system, potentially leading to full site takeover, data theft, or complete service disruption. This vulnerability can be exploited remotely without requiring any user interaction or special account privileges.
Technical details
A PHP Object Injection vulnerability exists in the Buddyboss Platform plugin for WordPress (versions <= 3.0.4) due to the unsafe deserialization of user-supplied data (CWE-502). An unauthenticated remote attacker can exploit this by sending specially crafted input to a vulnerable component, triggering the execution of arbitrary PHP code if a suitable 'gadget chain' is present on the server. This can lead to full remote code execution (RCE), unauthorized file access, or database manipulation. The issue is addressed in version 3.0.5.
Affected products
- BuddyBoss Buddyboss Platform <= 3.0.4
Timeline
- 2026-06-26: advisory: NVD publication date
- 2026-06-26: disclosed: Initial disclosure by Patchstack
- 3.0.5: patched: Vulnerability fixed in version 3.0.5