CVE-2026-49227: CWE-639: Authorization Bypass Through User-Controlled Key in givanz Vvveb
Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to 1.0.8.4, Vvveb backend comment operations allow a low-privileged Author to manage comments under another Author's posts. The admin/controller/content/comment.php and admin/controller/content/comments.php controllers and the admin/sql/sqlite/comment.sql queries accept a caller-controlled comment_id without verifying comment.post_id against post.admin_id for the current admin_id. An attacker can read pending comment content and commenter email addresses, change moderation status, edit comment content, or delete comments, breaking author and moderation boundaries. This issue is fixed in version 1.0.8.4.
AI Analysis
Technical Summary
CVE-2026-49227 describes an authorization bypass in Vvveb CMS before version 1.0.8.4. The backend comment management controllers accept a user-controlled comment_id parameter without verifying that the comment's associated post belongs to the current admin user. This lack of verification allows a low-privileged Author to access and manipulate comments on posts they do not own, including reading pending comment content and commenter emails, changing moderation status, editing comment content, or deleting comments. The vulnerability is classified under CWE-639 (Authorization Bypass Through User-Controlled Key) and has a CVSS 3.1 score of 7.6 (high severity).
Potential Impact
An attacker with low-privileged Author access can bypass authorization controls to view and modify comments on other Authors' posts. This compromises confidentiality of commenter information and integrity of comment content and moderation status, potentially disrupting content moderation and user trust.
Mitigation Recommendations
This vulnerability is fixed in Vvveb version 1.0.8.4. Users should upgrade to version 1.0.8.4 or later to remediate this issue. No official patch or workaround is provided other than upgrading. Patch status is not explicitly confirmed beyond the fixed version; verify with the vendor advisory for the latest remediation guidance.
CVE-2026-49227: CWE-639: Authorization Bypass Through User-Controlled Key in givanz Vvveb
Description
Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to 1.0.8.4, Vvveb backend comment operations allow a low-privileged Author to manage comments under another Author's posts. The admin/controller/content/comment.php and admin/controller/content/comments.php controllers and the admin/sql/sqlite/comment.sql queries accept a caller-controlled comment_id without verifying comment.post_id against post.admin_id for the current admin_id. An attacker can read pending comment content and commenter email addresses, change moderation status, edit comment content, or delete comments, breaking author and moderation boundaries. This issue is fixed in version 1.0.8.4.
CVSS v3.1
Score 7.6high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-49227 describes an authorization bypass in Vvveb CMS before version 1.0.8.4. The backend comment management controllers accept a user-controlled comment_id parameter without verifying that the comment's associated post belongs to the current admin user. This lack of verification allows a low-privileged Author to access and manipulate comments on posts they do not own, including reading pending comment content and commenter emails, changing moderation status, editing comment content, or deleting comments. The vulnerability is classified under CWE-639 (Authorization Bypass Through User-Controlled Key) and has a CVSS 3.1 score of 7.6 (high severity).
Potential Impact
An attacker with low-privileged Author access can bypass authorization controls to view and modify comments on other Authors' posts. This compromises confidentiality of commenter information and integrity of comment content and moderation status, potentially disrupting content moderation and user trust.
Mitigation Recommendations
This vulnerability is fixed in Vvveb version 1.0.8.4. Users should upgrade to version 1.0.8.4 or later to remediate this issue. No official patch or workaround is provided other than upgrading. Patch status is not explicitly confirmed beyond the fixed version; verify with the vendor advisory for the latest remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-28T03:42:34.341Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8482f1c6e8be03326f9aa7
Added to database: 08/18/2026, 16:06:09 UTC
Last enriched: 08/18/2026, 16:20:45 UTC
Last updated: 08/19/2026, 00:28:51 UTC
Views: 7
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