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CVE-2025-31631 — AI Deep Analysis Summary

CVSS 9.8 · Critical

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Fish House (v1.2.7-) suffers from **PHP Object Injection** via untrusted data deserialization.…

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-502** (Deserialization of Untrusted Data). The plugin fails to validate/sanitize input before passing it to PHP's `unserialize()`, allowing malicious payloads to instantiate arbitrary objects.

Q3Who is affected? (Versions/Components)

🏢 **Affected**: **AncoraThemes**' **Fish House** WordPress theme. 📉 **Version**: **1.2.7 and earlier**. If you are running this theme, you are vulnerable.

Q4What can hackers do? (Privileges/Data)

🔓 **Attacker Capabilities**: With **CVSS 9.8 (Critical)**, attackers gain **High** Confidentiality, Integrity, and Availability impact.…

Q5Is exploitation threshold high? (Auth/Config)

⚡ **Exploitation Threshold**: **LOW**. Vector: `AV:N/AC:L/PR:N/UI:N`. No authentication (PR:N) or user interaction (UI:N) required. Remote attackers can exploit this directly over the network.

Q6Is there a public Exp? (PoC/Wild Exploitation)

📜 **Public Exploit**: **No PoC provided** in the data. However, given the low complexity and lack of auth, wild exploitation is highly likely once details are reverse-engineered by threat actors.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan your WordPress installation for **Fish House** theme version **≤ 1.2.7**. Look for suspicious `unserialize()` calls in theme files or unexpected network connections from the server.

Q8Is it fixed officially? (Patch/Mitigation)

🩹 **Official Fix**: Update to the latest version of Fish House. The vendor **AncoraThemes** has released a patch. Check the official WordPress repository or Patchstack for the fixed release.

Q9What if no patch? (Workaround)

🚧 **No Patch?**: **Disable** the Fish House theme immediately. Switch to a default theme.…

Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. CVSS 9.8 + No Auth Required = Immediate Action. Patch now or isolate the site. Do not wait for a PoC to appear; the risk is already extreme.