CVE-2026-66648: CWE-266 Incorrect Privilege Assignment in MVPThemes Jawn
Description
CVE-2026-66648 is a critical vulnerability in MVPThemes Jawn affecting versions up to and including 1.4.2. It allows unauthenticated users to escalate privileges due to incorrect privilege assignment (CWE-266). The vulnerability has a CVSS score of 9.8, indicating high impact on confidentiality, integrity, and availability.
CVSS v3.1
Score 9.8critical
Affected software
MVPThemes
Jawn
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in MVPThemes Jawn (<=1.4.2) involves incorrect privilege assignment, enabling unauthenticated attackers to escalate privileges. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) reflects network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, and high impact on confidentiality, integrity, and availability. No official remediation or patch has been confirmed as of the published date.
Potential Impact
Successful exploitation allows unauthenticated attackers to gain elevated privileges, potentially leading to full compromise of the affected system's confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the affected application and monitor for suspicious activity related to privilege escalation attempts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Patchstack
- Date Reserved
- 2026-07-27T14:00:38.499Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a8c341dacd9273b497e22cf
Added to database: 08/24/2026, 12:07:57 UTC
Last enriched: 09/10/2026, 11:22:54 UTC
Last updated: 10/08/2026, 18:48:47 UTC
Views: 77
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