CVE-2026-126373
Deferred Deferred - Pending Action

Authorization Bypass in Vvveb CMS via Revision Action

Publication date: 2026-11-13

Last updated on: 2026-11-13

Assigner: VulnCheck

Description
Vvveb 1.0.8.4 through 1.0.8.6 contains an authorization bypass vulnerability in the content/revisions revision action that lets low-privileged Authors read other authors' revisions. Attackers can supply a post_id, language_id, and created_at timestamp to retrieve private unpublished drafts, because the revision() action lacks the admin_id ownership restriction.

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Meta Information

Published
2026-11-13
Last Modified
2026-11-13
Generated
2026-11-13
AI Q&A
2026-11-13
EPSS Evaluated
N/A
NVD
CVE-2026-126373
EUVD
EUVD-2026-125192

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
givanz Vvveb From 1.0.8.4 (inc) to 1.0.8.6 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

This vulnerability is an authorization bypass in Vvveb versions 1.0.8.4 through 1.0.8.6. A low-privileged Author can read other authors' private unpublished drafts by exploiting the content/revisions revision action. The attacker supplies a post_id, language_id, and created_at timestamp to retrieve sensitive content without proper permissions.

Detection Guidance

Check Vvveb versions 1.0.8.4 through 1.0.8.6 for the vulnerable content/revisions endpoint. Monitor logs for unauthorized access attempts to revision actions with post_id, language_id, and created_at parameters. Test by attempting to retrieve revisions with low-privileged user credentials.

Impact Analysis

The impact includes unauthorized access to private draft content, potentially exposing sensitive unpublished material. Attackers could read drafts from other authors, leading to data leaks or intellectual property theft. The vulnerability has a medium severity rating with a CVSS score of 5.3.

Mitigation Strategies

Apply the current author's admin_id to the revision() action in Vvveb. Update to the latest patched version if available. Restrict access to the revision endpoint and review user permissions to ensure Authors cannot access others' drafts.

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