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Q1What is this vulnerability? (Essence + Consequences)
🚨 **Essence**: Arbitrary File Upload via `uploadFontIconAJAX`. 💥 **Consequences**: Attackers upload malicious ZIP files (containing PHP) to `wp-content/uploads/kaswara/fonts_icon`.…
🛡️ **CWE**: CWE-434 (Unrestricted Upload of File with Dangerous Type). 🐛 **Flaw**: The plugin unzips uploaded files into the web-accessible directory **without checking** for malicious content like PHP scripts.
Q3Who is affected? (Versions/Components)
🏢 **Vendor**: SayenThemes. 📦 **Product**: Kaswara Modern VC Addons. 📉 **Affected**: Version **3.0.1 and earlier**. ✅ **Safe**: Versions > 3.0.1.
Q4What can hackers do? (Privileges/Data)
👑 **Privileges**: Full **Code Execution** (RCE). 📂 **Data**: Complete server compromise. Attackers can run arbitrary commands, steal data, or install backdoors.
Q5Is exploitation threshold high? (Auth/Config)
🔓 **Auth**: **Unauthenticated**. No login required. 🎯 **Config**: Exploits the `uploadFontIcon` AJAX action directly. Extremely easy to trigger.
Q6Is there a public Exp? (PoC/Wild Exploitation)
💻 **Exploit**: Yes. Public PoC available via **Nuclei Templates** (ProjectDiscovery). 🌐 **Status**: High risk of wild exploitation due to simplicity.
Q7How to self-check? (Features/Scanning)
🔍 **Check**: Scan for `uploadFontIconAJAX` endpoint. 📂 **Verify**: Look for unauthorized PHP files in `wp-content/uploads/kaswara/fonts_icon/`. 🛠️ **Tool**: Use Nuclei or manual HTTP requests.
Q8Is it fixed officially? (Patch/Mitigation)
🩹 **Fix**: Update plugin to version **> 3.0.1**. 📢 **Source**: Vendor patch released. Check official WordPress repository or CodeCanyon for updates.
Q9What if no patch? (Workaround)
🚫 **Workaround**: Disable the `uploadFontIcon` AJAX action via code. 🛡️ **Harden**: Restrict upload permissions in `wp-config.php` or WAF rules to block PHP execution in upload folders.
Q10Is it urgent? (Priority Suggestion)
⚠️ **Priority**: **CRITICAL**. 🔥 **Urgency**: High. Unauthenticated RCE is a top-tier threat. Patch **immediately** to prevent server takeover.