CVE-2026-1357 — AI Deep Analysis Summary

🚨 **Essence**: Unauthenticated Remote Code Execution (RCE) in WPvivid Backup & Migration. 📉 **Consequences**: Attackers gain full control over the WordPress site, leading to data theft, defacement, or server compromise.…

🔍 **Root Cause**: Two fatal flaws combined: 1️⃣ **Cryptographic Fail-Open**: Improper error handling in RSA decryption allows bypassing security checks.…

👥 **Affected**: WordPress sites using the **WPvivid Backup & Migration** plugin. 📦 **Version**: Versions **0.9.123 and earlier**. 🏢 **Vendor**: wpvividplugins.

🕵️ **Attacker Actions**: Upload arbitrary PHP files. 💻 **Result**: Achieve **Remote Code Execution (RCE)** without authentication. 📂 **Access**: Full read/write access to server files and database.…

📉 **Threshold**: **LOW**. 🚫 **Auth**: No authentication required. 🎯 **Config**: Exploitable via standard web requests (`wpvivid_action=send_to_site`). 🌐 **Vector**: Network-based (AV:N).

🔥 **Exploitation**: **YES**. Multiple public PoCs exist on GitHub (e.g., `itsismarcos`, `LucasM0ntes`, `halilkirazkaya`). 🤖 **Automation**: Nuclei templates available for mass scanning.…

🔎 **Check**: Scan for WPvivid plugin version ≤ 0.9.123. 🛠️ **Tools**: Use Nuclei templates (`CVE-2026-1357.yaml`) or manual PoC scripts.…

🛡️ **Fix**: Update WPvivid Backup & Migration plugin to the latest version (post-0.9.123). 🔄 **Action**: Check WordPress dashboard for updates immediately.…

⚠️ **Workaround**: If patching is delayed, **disable the plugin** temporarily. 🚫 **Block**: Restrict access to `wp-admin` and specific plugin endpoints via WAF.…

🚨 **Priority**: **CRITICAL / URGENT**. ⏱️ **Time**: Patch immediately. 📢 **Reason**: Unauthenticated RCE with public exploits means active targeting is highly likely.…