CVE-2026-4880 — AI Deep Analysis Summary

Q: What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Token-based auth is broken in 'Barcode Scanner' plugin. 💥 **Consequences**: Attackers can escalate privileges, leading to **High** impact on Confidentiality, Integrity, and Availability (CVSS 9.8).

Q: Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: CWE-269 (Improper Privilege Management). 🔍 **Flaw**: The token authentication mechanism is insecure, allowing unauthorized access control bypass.

Q: Who is affected? (Versions/Components)

📦 **Affected**: WordPress Plugin: **Barcode Scanner (+Mobile App)** by ukrsolution. 📅 **Version**: v1.11.0 and earlier. 🌐 **Platform**: WordPress sites using this specific POS/Inventory plugin.

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

🕵️ **Hackers Can**: Elevate privileges from low-level users to admins. 📂 **Data Risk**: Full access to site data, inventory, orders, and POS systems. ⚠️ **Impact**: Complete system compromise (C:H, I:H, A:H).

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

🔓 **Threshold**: **LOW**. 🚫 **Auth Required**: None (PR:N). 🖱️ **User Interaction**: None (UI:N). 🌍 **Attack Vector**: Network (AV:N). Easy to exploit remotely.

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

📜 **Public Exp?**: **No** public PoC or wild exploitation code found in the provided data. ⚠️ **Risk**: Despite no PoC, the CVSS score indicates high exploitability potential.

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

🔍 **Self-Check**: Scan for 'Barcode Scanner' plugin by 'ukrsolution'. 📊 **Version Check**: Verify if version is ≤ 1.11.0. 🛠️ **Tool**: Use WPScan or manual plugin directory inspection.

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

✅ **Fixed?**: Yes. 📝 **Patch**: Reference to changeset **3506824** in WordPress Trac indicates a fix was applied. 🔗 **Source**: WordFence and WP Trac confirm the remediation path.

Q: What if no patch? (Workaround)

🚧 **No Patch Workaround**: 1️⃣ **Disable** the plugin immediately if not critical. 2️⃣ **Restrict** access to `/wp-admin` via IP whitelist. 3️⃣ **Monitor** logs for unusual privilege escalation attempts.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. 📈 **Priority**: Patch immediately. 📉 **Reason**: CVSS 9.8 (Critical), no auth required, high impact. Do not delay.

Updated May 06, 2026 CVSS 9.8 · Critical

This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis →

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Token-based auth is broken in 'Barcode Scanner' plugin. <br>💥 **Consequences**: Attackers can escalate privileges, leading to **High** impact on Confidentiality, Integrity, and Availability (CVSS 9.8).

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: CWE-269 (Improper Privilege Management). <br>🔍 **Flaw**: The token authentication mechanism is insecure, allowing unauthorized access control bypass.

Q3Who is affected? (Versions/Components)

📦 **Affected**: WordPress Plugin: **Barcode Scanner (+Mobile App)** by ukrsolution. <br>📅 **Version**: v1.11.0 and earlier. <br>🌐 **Platform**: WordPress sites using this specific POS/Inventory plugin.

Q4What can hackers do? (Privileges/Data)

🕵️ **Hackers Can**: Elevate privileges from low-level users to admins. <br>📂 **Data Risk**: Full access to site data, inventory, orders, and POS systems. <br>⚠️ **Impact**: Complete system compromise (C:H, I:H, A:H).

Q5Is exploitation threshold high? (Auth/Config)

🔓 **Threshold**: **LOW**. <br>🚫 **Auth Required**: None (PR:N). <br>🖱️ **User Interaction**: None (UI:N). <br>🌍 **Attack Vector**: Network (AV:N). Easy to exploit remotely.

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

📜 **Public Exp?**: **No** public PoC or wild exploitation code found in the provided data. <br>⚠️ **Risk**: Despite no PoC, the CVSS score indicates high exploitability potential.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan for 'Barcode Scanner' plugin by 'ukrsolution'. <br>📊 **Version Check**: Verify if version is ≤ 1.11.0. <br>🛠️ **Tool**: Use WPScan or manual plugin directory inspection.

Q8Is it fixed officially? (Patch/Mitigation)

✅ **Fixed?**: Yes. <br>📝 **Patch**: Reference to changeset **3506824** in WordPress Trac indicates a fix was applied. <br>🔗 **Source**: WordFence and WP Trac confirm the remediation path.

Q9What if no patch? (Workaround)

🚧 **No Patch Workaround**: <br>1️⃣ **Disable** the plugin immediately if not critical. <br>2️⃣ **Restrict** access to `/wp-admin` via IP whitelist. <br>3️⃣ **Monitor** logs for unusual privilege escalation attempts.

Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. <br>📈 **Priority**: Patch immediately. <br>📉 **Reason**: CVSS 9.8 (Critical), no auth required, high impact. Do not delay.

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Vulnerability detail Full AI analysis (login) ukrsolution CWE-269