This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis β
Q1What is this vulnerability? (Essence + Consequences)
π¨ **Essence**: A critical **PHP Object Injection** flaw in the RegistrationMagic plugin. π **Consequences**: Attackers can execute arbitrary code, leading to full server compromise, data theft, and site defacement.β¦
π‘οΈ **Root Cause**: **CWE-502** (Deserialization of Untrusted Data). π **Flaw**: The `is_expired_by_date` function fails to validate input before passing it to PHP's `unserialize()`.β¦
π’ **Vendor**: Metagauss. π¦ **Product**: RegistrationMagic β Custom Registration Forms, User Registration, Payment, and User Login. π **Affected**: Versions **prior to 3.7.9.3**.
Q4What can hackers do? (Privileges/Data)
π **Attacker Capabilities**: Full **Remote Code Execution (RCE)**. π **Impact**: Complete access to server files, database credentials, and user data.β¦
π₯ **Exploitation**: **YES**. π° **Evidence**: References confirm **wild exploitation** in the wild (WordFence Intel). Public PoCs and active attacks were reported in October 2017. It is a known 3-day zero-day at the time.
Q7How to self-check? (Features/Scanning)
π **Self-Check**: 1. Check WordPress plugin list for **RegistrationMagic**. 2. Verify version is **< 3.7.9.3**. 3. Scan for `unserialize()` calls in `is_expired_by_date` function. 4.β¦
π οΈ **Fix**: **YES**. β **Patch**: Update to version **3.7.9.3** or later. π **Source**: Official WordPress SVN changeset #1733274 addresses the input validation issue.
Q9What if no patch? (Workaround)
π§ **No Patch Workaround**: 1. **Disable** the plugin immediately if update is impossible. 2. **Remove** the plugin entirely. 3. Implement WAF rules to block suspicious `unserialize` payloads in POST requests. 4.β¦