Q: Is it fixed officially? (Patch/Mitigation)

✅ **Fixed**: **Yes**. 🔧 **Patch**: Upgrade to **v3.6.1**. 🔗 **Links**: See GitHub Release v3.6.1 and GHSA-4mx9-3c2h-hwhg for details.

Q: What if no patch? (Workaround)

🛑 **No Patch Workaround**: 1. **Disable** SVG rendering if possible. 2. **Avoid** importing untrusted SVG files. 3. **Isolate** your SiYuan instance from the public internet if possible.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **High Priority**. 📉 **CVSS**: 8.1 (High). 💡 **Action**: Update immediately. Even without a public PoC, the flaw is critical for data privacy in a knowledge base.

Question 1

What is this vulnerability? (Essence + Consequences)

Accepted Answer

🚨 **Essence**: SiYuan v3.6.0- has a **Clickjacking/XSS** flaw in `SanitizeSVG`.
💥 **Consequences**: Attackers can inject malicious scripts via SVG inputs, leading to **Click-based Cross-Site Scripting**.…

Question 2

Root Cause? (CWE/Flaw)

Accepted Answer

🛡️ **Root Cause**: **CWE-79** (XSS).
🔍 **Flaw**: The `SanitizeSVG` filter uses an **incomplete blocklist** and fails to **escape user input**. Malicious SVG tags slip through the cracks.

Question 3

Who is affected? (Versions/Components)

Accepted Answer

📦 **Affected**: **SiYuan Note** (Personal Knowledge Management).
📅 **Versions**: **v3.6.0 and earlier**. If you are on an older version, you are at risk.

Question 4

What can hackers do? (Privileges/Data)

Accepted Answer

🕵️ **Hacker Actions**: Execute arbitrary JavaScript in your context.
🔓 **Privileges**: Steal cookies, session tokens, or perform actions on your behalf.…

Question 5

Is exploitation threshold high? (Auth/Config)

Accepted Answer

⚠️ **Threshold**: **Medium**.
🖱️ **Requirement**: **User Interaction (UI:R)**. The victim must **click** something.…

Question 6

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

Accepted Answer

🚫 **Public Exploit**: **No**.
📂 **PoCs**: Empty in data.
🌍 **Wild Exploitation**: None reported yet. It is a theoretical risk until a PoC is released.

Question 7

How to self-check? (Features/Scanning)

Accepted Answer

🔍 **Self-Check**:
1. Check your SiYuan version in Settings.
2. If **< v3.6.1**, you are vulnerable.
3. Scan for custom SVG imports in your notes that look suspicious.

Question 8

Is it fixed officially? (Patch/Mitigation)

Accepted Answer

✅ **Fixed**: **Yes**.
🔧 **Patch**: Upgrade to **v3.6.1**.
🔗 **Links**: See GitHub Release v3.6.1 and GHSA-4mx9-3c2h-hwhg for details.

Question 9

What if no patch? (Workaround)

Accepted Answer

🛑 **No Patch Workaround**:
1. **Disable** SVG rendering if possible.
2. **Avoid** importing untrusted SVG files.
3. **Isolate** your SiYuan instance from the public internet if possible.

Question 10

Is it urgent? (Priority Suggestion)

Accepted Answer

🔥 **Urgency**: **High Priority**.
📉 **CVSS**: 8.1 (High).
💡 **Action**: Update immediately. Even without a public PoC, the flaw is critical for data privacy in a knowledge base.

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

CVE-2026-32940 — 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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