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CVE-2025-39500 โ€” AI Deep Analysis Summary

CVSS 9.8 ยท Critical

Q1What is this vulnerability? (Essence + Consequences)

๐Ÿšจ **Essence**: A critical **PHP Object Injection** flaw in the Goodlayers Hostel plugin. ๐Ÿ“‰ **Consequences**: Attackers can inject malicious objects via **unsafe deserialization**.โ€ฆ

Q2Root Cause? (CWE/Flaw)

๐Ÿ›ก๏ธ **Root Cause**: **CWE-502** (Deserialization of Untrusted Data). ๐Ÿ’ฅ **Flaw**: The plugin fails to validate or sanitize input before passing it to PHP's `unserialize()` function.โ€ฆ

Q3Who is affected? (Versions/Components)

๐Ÿข **Vendor**: GoodLayers. ๐Ÿ“ฆ **Product**: Goodlayers Hostel (WordPress Plugin). ๐Ÿ“… **Affected Versions**: **3.1.2 and earlier**. If you are running any version โ‰ค 3.1.2, you are vulnerable. Update immediately!

Q4What can hackers do? (Privileges/Data)

๐Ÿ‘‘ **Privileges**: **Full Control**. Since it is a code execution/injection vulnerability, attackers can execute arbitrary PHP code.โ€ฆ

Q5Is exploitation threshold high? (Auth/Config)

๐Ÿ”“ **Threshold**: **LOW**. ๐Ÿšซ **Auth**: No authentication required (PR:N). ๐Ÿ–ฑ๏ธ **UI**: No user interaction needed (UI:N). ๐ŸŒ **Network**: Remote exploitation (AV:N).โ€ฆ

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

๐Ÿ•ต๏ธ **Public Exploit**: The provided data shows **empty PoCs** (`pocs: []`). However, the vulnerability type (Object Injection) is well-known.โ€ฆ

Q7How to self-check? (Features/Scanning)

๐Ÿ” **Self-Check**: 1. Check your WordPress plugin list for **Goodlayers Hostel**. 2. Verify the version number. 3. If it is **3.1.2 or lower**, you are at risk. 4.โ€ฆ

Q8Is it fixed officially? (Patch/Mitigation)

๐Ÿ› ๏ธ **Fix**: Yes, an official patch exists. ๐Ÿ“ฅ **Action**: Update the Goodlayers Hostel plugin to the **latest version** (greater than 3.1.2). The vendor has released a fix for this deserialization issue.โ€ฆ

Q9What if no patch? (Workaround)

๐Ÿšง **Workaround**: If you cannot update immediately: 1. **Deactivate** the Goodlayers Hostel plugin. 2. **Delete** it if not needed. 3.โ€ฆ

Q10Is it urgent? (Priority Suggestion)

๐Ÿ”ฅ **Urgency**: **CRITICAL**. ๐Ÿšจ **Priority**: **P1**. With a CVSS vector indicating High impact and no authentication required, this is a **zero-day style risk**. Patch immediately to prevent potential server takeover.โ€ฆ