Question 1

What is this vulnerability? (Essence + Consequences)

Accepted Answer

🚨 **Essence**: CloudCharge (EV charging platform) has an **Access Control Error** in its WebSocket endpoints.…

Question 2

Root Cause? (CWE/Flaw)

Accepted Answer

🛡️ **Root Cause**: **CWE-306** (Missing Authentication for Critical Function).
🔍 **Flaw**: The WebSocket endpoint lacks proper **authentication mechanisms**. No ID check = No protection.

Question 3

Who is affected? (Versions/Components)

Accepted Answer

🏢 **Affected**: **CloudCharge** (Sweden-based EV charging management platform).
🌐 **Target**: The website/service at **cloudcharge.se**. Specific versions not listed, but the core service is vulnerable.

Question 4

What can hackers do? (Privileges/Data)

Accepted Answer

🕵️ **Hacker Actions**:
1️⃣ **Simulate** unauthorized charging stations.
2️⃣ **Manipulate** charging data.
3️⃣ **High Impact**: Full Confidentiality & Integrity compromise (CVSS C:H, I:H).

Question 5

Is exploitation threshold high? (Auth/Config)

Accepted Answer

⚡ **Exploitation**: **LOW Threshold**.
🔓 **Auth**: **None required** (PR:N).
🌐 **Network**: Remote (AV:N).
👤 **User Interaction**: None needed (UI:N). Easy to trigger!

Question 6

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

Accepted Answer

📦 **Public Exploit**: **No**.
🚫 **PoC**: Empty list in data.
📢 **Wild Exploitation**: None reported yet. But the flaw is critical, so stay alert!

Question 7

How to self-check? (Features/Scanning)

Accepted Answer

🔍 **Self-Check**:
1️⃣ Inspect WebSocket connections on **cloudcharge.se**.
2️⃣ Check for **missing auth tokens** in WS frames.
3️⃣ Scan for **CWE-306** patterns in backend APIs.

Question 8

Is it fixed officially? (Patch/Mitigation)

Accepted Answer

🩹 **Official Fix**: **Yes/Recommended**.
📅 **Published**: 2026-02-26.
🔗 **Source**: CISA Advisory ICSA-26-057-03. Vendor contact available at cloudcharge.tech/support/contact/.

Question 9

What if no patch? (Workaround)

Accepted Answer

🛑 **No Patch? Workaround**:
1️⃣ **Restrict Access**: Firewall rules to block direct WebSocket access if possible.
2️⃣ **Monitor**: Log all WS traffic for anomalies.…

Question 10

Is it urgent? (Priority Suggestion)

Accepted Answer

🔥 **Urgency**: **HIGH**.
📈 **Priority**: Immediate action.
⚠️ **Reason**: Remote, unauthenticated, high impact on critical infrastructure (EV charging). Patch ASAP!

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

CVE-2026-20781 — 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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