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Sulu CMS EUVDEUVD-2026-68887

| CVE-2026-82394 MEDIUM
Missing Authorization (CWE-862)
2026-08-31 GitHub_M GHSA-65cv-w493-7vhq
PHP Authentication Bypass Sulu
5.3
CVSS 4.0 · Vendor: GitHub_M
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Severity by source

Vendor (GitHub_M) PRIMARY
5.3 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
4.3 MEDIUM

Network-accessible admin endpoint requires low-privileged authenticated user (PR:L); only partial confidentiality impact via restricted content exposure, no integrity or availability effect.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
Aug 31, 2026 - 23:02 EUVD
Source Code Evidence Fetched
Aug 31, 2026 - 22:06 vuln.today
Analysis Generated
Aug 31, 2026 - 22:06 vuln.today

DescriptionCVE.org

Sulu is an open-source PHP content management system based on the Symfony framework. Prior to versions 2.6.25 and 3.0.8, the preview-link endpoint and src/Sulu/Bundle/PreviewBundle/Application/Manager/PreviewLinkManager.php do not enforce VIEW permission for the target resource in PreviewLinkManager::generate() or PreviewLinkManager::revoke(). An authenticated administration user who knows a target resource identifier can create or revoke a preview link for any page, article, or snippet, including content in a webspace or area the user cannot view. A generated preview URL is public and resolves content by an opaque token, allowing the user or anyone receiving the link to read restricted content without authentication. This issue is fixed in versions 2.6.25 and 3.0.8.

AnalysisAI

Sulu CMS versions prior to 2.6.25 and 3.0.8 allow authenticated admin users to generate or revoke public preview links for any page, article, or snippet - including content in webspaces they are explicitly forbidden from viewing - because PreviewLinkManager::generate() and PreviewLinkManager::revoke() omit the VIEW permission check before executing. The resulting preview URLs are publicly accessible via an opaque token with no authentication required, meaning the attacker or any recipient of the link can read otherwise-restricted CMS content. …

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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid, authenticated Sulu administration account - completely unauthenticated users cannot reach the preview-link endpoint. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:L) accurately frames this as a moderate-severity missing-authorization flaw: network-reachable, low complexity, requiring only a low-privileged authenticated admin account, with limited confidentiality impact on the vulnerable system. … 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 The primary fix is to upgrade Sulu to version 2.6.25 (2.x series) or 3.0.8 (3.x series), which introduce the missing VIEW permission enforcement in PreviewLinkManager. … Detailed patch versions, workarounds, and compensating controls in full report.
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EUVD-2026-68887 vulnerability details – vuln.today
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