Q: Who is affected? (Versions/Components)

📦 **Affected Versions**: • Roundcube Webmail **< 1.5.10** (LTS) • Roundcube Webmail **< 1.6.11** (Current) 🏢 **Vendor**: Roundcube Team.

Q: Is it urgent? (Priority Suggestion)

🚨 **Urgency**: **CRITICAL / IMMEDIATE**. • CVSS 10.0. • Public PoCs and Scanners exist. • Flaw has existed for **10+ years**. 👉 **Priority**: **P1**. Patch or mitigate within **24-48 hours**.

Question 1

What is this vulnerability? (Essence + Consequences)

Accepted Answer

🚨 **Essence**: Critical PHP Object Deserialization flaw in Roundcube Webmail.
🔥 **Consequences**: Allows Remote Code Execution (RCE).…

Question 2

Root Cause? (CWE/Flaw)

Accepted Answer

🛡️ **Root Cause**: **CWE-502** (Deserialization of Untrusted Data).
❌ **Flaw**: The `_from` parameter in `program/actions/settings/upload.php` is **not validated**.…

Question 3

Who is affected? (Versions/Components)

Accepted Answer

📦 **Affected Versions**:
• Roundcube Webmail **< 1.5.10** (LTS)
• Roundcube Webmail **< 1.6.11** (Current)
🏢 **Vendor**: Roundcube Team.

Question 4

What can hackers do? (Privileges/Data)

Accepted Answer

💀 **Attacker Capabilities**:
• **RCE**: Execute arbitrary code on the server.
• **Privileges**: Gain full system access (since it runs as the web user).…

Question 5

Is exploitation threshold high? (Auth/Config)

Accepted Answer

🔓 **Exploitation Threshold**:
• **Auth Required**: **YES**. Must be an **authenticated user**.
• **UI Required**: **NO**. No user interaction needed beyond login.
• **Network**: Remote (AV:N).…

Question 6

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

Accepted Answer

💣 **Public Exploits**:
• **PoC Available**: **YES**. Multiple GitHub repos (e.g., `rasool13x/exploit-CVE-2025-49113`).…

Question 7

How to self-check? (Features/Scanning)

Accepted Answer

🔍 **Self-Check Methods**:
1. **Version Check**: Look for `rcversion` in HTML body.
2. **Scanner**: Use Nuclei with CVE-2025-49113 template.
3.…

Question 8

Is it fixed officially? (Patch/Mitigation)

Accepted Answer

✅ **Official Fix**:
• **Patch Available**: **YES**.
• **Fixed Versions**: Roundcube **1.5.10** and **1.6.11**.
📥 **Action**: Upgrade immediately to these versions or later.…

Question 9

What if no patch? (Workaround)

Accepted Answer

🚧 **No Patch Workaround**:
1. **Restrict Access**: Block access to `program/actions/settings/upload.php` via WAF or Web Server config.
2.…

Question 10

Is it urgent? (Priority Suggestion)

Accepted Answer

🚨 **Urgency**: **CRITICAL / IMMEDIATE**.
• CVSS 10.0.
• Public PoCs and Scanners exist.
• Flaw has existed for **10+ years**.
👉 **Priority**: **P1**. Patch or mitigate within **24-48 hours**.

Goal Reached Thanks to every supporter — we hit 100%!

CVE-2025-49113 — AI Deep Analysis Summary

Q1What is this vulnerability? (Essence + Consequences)

Q2Root Cause? (CWE/Flaw)

Q3Who is affected? (Versions/Components)

Q4What can hackers do? (Privileges/Data)

Q5Is exploitation threshold high? (Auth/Config)

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

Q7How to self-check? (Features/Scanning)

Q8Is it fixed officially? (Patch/Mitigation)

Q9What if no patch? (Workaround)

Q10Is it urgent? (Priority Suggestion)

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