CVE-2026-49226: CWE-639: Authorization Bypass Through User-Controlled Key in givanz Vvveb
Vvveb CMS versions prior to 1.0.8.4 contain an authorization bypass vulnerability that allows low-privileged Authors to access, duplicate, or delete posts owned by other Authors. This occurs because the backend post operations permit user-controlled filters to override admin_id restrictions and do not consistently enforce ownership checks in the database. Exploitation can lead to exposure of private drafts, unauthorized content modification, and potential data loss or business disruption. The issue is fixed in version 1.0.8.4.
AI Analysis
Technical Summary
CVE-2026-49226 is an authorization bypass vulnerability in the Vvveb CMS by givanz affecting versions before 1.0.8.4. The backend post controller allows a low-privileged Author to manipulate the filter[admin_id] parameter, overriding server-enforced ownership restrictions. Additionally, the post_id parameter for duplicate and delete actions is caller-controlled, and the SQLite database does not consistently enforce post ownership via admin_id. These flaws enable an attacker to view metadata of posts owned by others, duplicate posts, or delete posts and related content, leading to unauthorized data exposure and content disruption. The vulnerability is resolved in version 1.0.8.4.
Potential Impact
An attacker with low-privileged Author access can bypass authorization controls to access, duplicate, or delete posts owned by other Authors. This can expose private drafts, cause unauthorized content duplication or deletion, resulting in data loss and potential business disruption. The confidentiality, integrity, and availability of post content are all impacted.
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 other mitigation or temporary workaround is documented. Patch status is confirmed by the vendor advisory indicating the fix in 1.0.8.4.
CVE-2026-49226: CWE-639: Authorization Bypass Through User-Controlled Key in givanz Vvveb
Description
Vvveb CMS versions prior to 1.0.8.4 contain an authorization bypass vulnerability that allows low-privileged Authors to access, duplicate, or delete posts owned by other Authors. This occurs because the backend post operations permit user-controlled filters to override admin_id restrictions and do not consistently enforce ownership checks in the database. Exploitation can lead to exposure of private drafts, unauthorized content modification, and potential data loss or business disruption. The issue is fixed in version 1.0.8.4.
CVSS v3.1
Score 8.3high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-49226 is an authorization bypass vulnerability in the Vvveb CMS by givanz affecting versions before 1.0.8.4. The backend post controller allows a low-privileged Author to manipulate the filter[admin_id] parameter, overriding server-enforced ownership restrictions. Additionally, the post_id parameter for duplicate and delete actions is caller-controlled, and the SQLite database does not consistently enforce post ownership via admin_id. These flaws enable an attacker to view metadata of posts owned by others, duplicate posts, or delete posts and related content, leading to unauthorized data exposure and content disruption. The vulnerability is resolved in version 1.0.8.4.
Potential Impact
An attacker with low-privileged Author access can bypass authorization controls to access, duplicate, or delete posts owned by other Authors. This can expose private drafts, cause unauthorized content duplication or deletion, resulting in data loss and potential business disruption. The confidentiality, integrity, and availability of post content are all impacted.
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 other mitigation or temporary workaround is documented. Patch status is confirmed by the vendor advisory indicating the fix in 1.0.8.4.
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: 6a8482f1c6e8be03326f9aa5
Added to database: 08/18/2026, 16:06:09 UTC
Last enriched: 08/18/2026, 16:20:56 UTC
Last updated: 08/18/2026, 18:17:11 UTC
Views: 4
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