Q: What can hackers do? (Privileges/Data)

💻 **Impact**: High Confidentiality & Integrity impact. 🕵️ **Hackers Can**: Steal user cookies, redirect users, or deface the interface by executing arbitrary JavaScript in the victim's browser.

Q: Is exploitation threshold high? (Auth/Config)

🔓 **Threshold**: Medium. 👤 **Auth**: PR:N (No Privileges Required). 👁️ **UI**: UI:R (User Interaction Required). Victims must click a malicious link or input data.

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

🚫 **Public Exploit**: No PoC provided in the data. 🌐 **Wild Exploit**: Unlikely to be widespread yet, but the flaw is straightforward to exploit manually.

Q: How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan for Movary instances. 🧪 **Test**: Input script tags into the `categoryUpdated` field. If the script executes, the system is vulnerable.

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

✅ **Fixed**: Yes! 📥 **Patch**: Upgrade to **Movary 0.70.0**. 🔗 **Ref**: [GitHub Release](https://github.com/leepeuker/movary/releases/tag/0.70.0).

Q: What if no patch? (Workaround)

🛡️ **Workaround**: If you cannot upgrade, **strictly sanitize** the `categoryUpdated` input on the server side. 🚫 **Block**: Disable user input for this field if possible.

Q: Is it urgent? (Priority Suggestion)

🔥 **Priority**: **High**. ⏳ **Urgency**: CVSS Score indicates High impact. Fix immediately by upgrading to v0.70.0 to prevent potential data breaches.

Question 1

What is this vulnerability? (Essence + Consequences)

Accepted Answer

🚨 **Essence**: A Cross-Site Scripting (XSS) flaw in **Movary**.
⚠️ **Consequences**: Attackers can inject malicious scripts, leading to **data theft** or **session hijacking** via the `categoryUpdated` parameter.

Question 2

Root Cause? (CWE/Flaw)

Accepted Answer

🛡️ **CWE**: CWE-20 (Improper Input Validation).
🔍 **Flaw**: Insufficient sanitization of the `categoryUpdated` input field allows malicious code execution.

Question 3

Who is affected? (Versions/Components)

Accepted Answer

📦 **Product**: Movary (by Lee Peuker).
📉 **Affected**: Versions **< 0.70.0**.
✅ **Fixed**: Version 0.70.0 and later.

Question 4

What can hackers do? (Privileges/Data)

Accepted Answer

💻 **Impact**: High Confidentiality & Integrity impact.
🕵️ **Hackers Can**: Steal user cookies, redirect users, or deface the interface by executing arbitrary JavaScript in the victim's browser.

Question 5

Is exploitation threshold high? (Auth/Config)

Accepted Answer

🔓 **Threshold**: Medium.
👤 **Auth**: PR:N (No Privileges Required).
👁️ **UI**: UI:R (User Interaction Required). Victims must click a malicious link or input data.

Question 6

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

Accepted Answer

🚫 **Public Exploit**: No PoC provided in the data.
🌐 **Wild Exploit**: Unlikely to be widespread yet, but the flaw is straightforward to exploit manually.

Question 7

How to self-check? (Features/Scanning)

Accepted Answer

🔍 **Self-Check**: Scan for Movary instances.
🧪 **Test**: Input script tags into the `categoryUpdated` field. If the script executes, the system is vulnerable.

Question 8

Is it fixed officially? (Patch/Mitigation)

Accepted Answer

✅ **Fixed**: Yes!
📥 **Patch**: Upgrade to **Movary 0.70.0**.
🔗 **Ref**: [GitHub Release](https://github.com/leepeuker/movary/releases/tag/0.70.0).

Question 9

What if no patch? (Workaround)

Accepted Answer

🛡️ **Workaround**: If you cannot upgrade, **strictly sanitize** the `categoryUpdated` input on the server side.
🚫 **Block**: Disable user input for this field if possible.

Question 10

Is it urgent? (Priority Suggestion)

Accepted Answer

🔥 **Priority**: **High**.
⏳ **Urgency**: CVSS Score indicates High impact. Fix immediately by upgrading to v0.70.0 to prevent potential data breaches.

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

CVE-2026-23839 — 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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