CVE-2026-27366: CWE-862 Missing Authorization in MainWP MainWP Child
Unauthenticated Broken Access Control in MainWP Child <= 6.1.1 versions.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-27366) affects MainWP Child versions up to 6.1.1 and is classified as CWE-862, indicating missing authorization controls. It allows unauthenticated attackers to bypass access controls, which can result in high impact on confidentiality, integrity, and availability. The CVSS 3.1 base score is 7.5, reflecting a high severity with network attack vector, high attack complexity, no privileges required, and requiring user interaction. There is currently no vendor advisory or patch information available to confirm remediation status.
Potential Impact
Successful exploitation of this vulnerability can lead to complete compromise of the affected system's confidentiality, integrity, and availability due to broken access control without authentication. This could allow attackers to perform unauthorized actions or access sensitive data within the MainWP Child environment.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the affected MainWP Child installations and monitor for unusual activity. Avoid exposing the vulnerable versions to untrusted networks.
CVE-2026-27366: CWE-862 Missing Authorization in MainWP MainWP Child
Description
Unauthenticated Broken Access Control in MainWP Child <= 6.1.1 versions.
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-27366) affects MainWP Child versions up to 6.1.1 and is classified as CWE-862, indicating missing authorization controls. It allows unauthenticated attackers to bypass access controls, which can result in high impact on confidentiality, integrity, and availability. The CVSS 3.1 base score is 7.5, reflecting a high severity with network attack vector, high attack complexity, no privileges required, and requiring user interaction. There is currently no vendor advisory or patch information available to confirm remediation status.
Potential Impact
Successful exploitation of this vulnerability can lead to complete compromise of the affected system's confidentiality, integrity, and availability due to broken access control without authentication. This could allow attackers to perform unauthorized actions or access sensitive data within the MainWP Child environment.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the affected MainWP Child installations and monitor for unusual activity. Avoid exposing the vulnerable versions to untrusted networks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Patchstack
- Date Reserved
- 2026-02-19T09:51:54.219Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3d38354853345fc10a3522
Added to database: 06/25/2026, 14:16:21 UTC
Last enriched: 06/25/2026, 14:48:02 UTC
Last updated: 06/25/2026, 20:19:41 UTC
Views: 2
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.