EUVD-2026-61023Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Network-accessible admin panel, low complexity IDOR; PR:L because Author account is required; I:H for full comment manipulation; C:L for PII read only.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
Lifecycle Timeline
4DescriptionCVE.org
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.
AnalysisAI
Insecure Direct Object Reference (IDOR) in Vvveb CMS prior to 1.0.8.4 allows authenticated low-privileged Authors to perform unauthorized comment operations across author boundaries in the admin backend. The admin/controller/content/comment.php and comments.php controllers accept caller-controlled comment_id values without validating that the referenced comment's parent post belongs to the requesting author, enabling cross-author comment enumeration, content manipulation, status changes, and deletion. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid low-privileged Author account in the Vvveb admin backend - the CVSS PR:L vector confirms authenticated access is mandatory. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 7.6 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L) accurately reflects the risk profile: network-accessible, low complexity, requiring only a low-privilege Author account. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade Vvveb CMS to version 1.0.8.4 or later, which is confirmed as the vendor-released patch per the GitHub release tag (https://github.com/givanz/Vvveb/releases/tag/1.0.8.4) and the associated commit (https://github.com/givanz/Vvveb/commit/70ec3c69f56d56938d96f9bd2c71daf2a7cd787f). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all Vvveb CMS instances and identify versions prior to 1.0.8.4; restrict access to the comment management admin interface (admin/controller/content/comment.php and comments.php) to senior administrators only and disable low-privilege author comment operations if technically feasible. …
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External POC / Exploit Code
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