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**: Unauthenticated PHP Object Injection in 'Theme per user' plugin. π₯ **Consequences**: Total system compromise. CVSS 9.8 (Critical). Full control over the WordPress site is at risk.
Q2Root Cause? (CWE/Flaw)
π‘οΈ **CWE-502**: Deserialization of Untrusted Data. π **Flaw**: The plugin fails to properly validate input before passing it to PHP's `unserialize()`. Hackers inject malicious serialized objects.
Q3Who is affected? (Versions/Components)
π’ **Vendor**: Presslabs. π¦ **Product**: WordPress Plugin 'Theme per user'. β οΈ **Version**: Specifically affects version **1.0.1** and likely earlier versions. π **Platform**: WordPress sites using this specific plugin.
Q4What can hackers do? (Privileges/Data)
π **Privileges**: Remote Code Execution (RCE). π **Data**: Full read/write access to files, database, and server. π **Impact**: Attackers can install backdoors, steal user data, or deface the website.β¦
π **Threshold**: LOW. π« **Auth**: Unauthenticated (No login needed). π **Network**: Network-accessible (AV:N). π±οΈ **UI**: No user interaction required (UI:N). Any visitor can trigger the exploit.
π **Check**: Scan for 'Theme per user' plugin. π **Version**: Verify if version is **1.0.1** or older. π οΈ **Tool**: Use WordPress security scanners or check `wp-content/plugins/theme-per-user/`.β¦
π§ **Fix**: Update the plugin to the latest secure version. π’ **Source**: Check Presslabs or Patchstack for the patched release. π **Action**: Immediate update is the primary mitigation strategy provided by the vendor.
Q9What if no patch? (Workaround)
π« **Workaround**: Deactivate and delete the 'Theme per user' plugin if not essential. π‘οΈ **WAF**: Block requests containing PHP serialized object patterns (e.g., `O:` or `a:`) at the web server level.β¦
π₯ **Priority**: CRITICAL (9.8/10). β±οΈ **Urgency**: IMMEDIATE. π¨ **Reason**: Unauthenticated RCE is a top-tier threat. π **Action**: Patch or remove the plugin TODAY. Do not wait.