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Sulu CMS EUVDEUVD-2026-68888

| CVE-2026-82395 MEDIUM
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-08-31 GitHub_M GHSA-h6cx-gjxx-v25c
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:L/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
5.4 MEDIUM

Network-accessible backend endpoint requires authenticated low-privilege user; limited confidentiality and integrity impact with no availability or scope change.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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 - 22:10 vuln.today
Analysis Generated
Aug 31, 2026 - 22:10 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 media move endpoint derives its permission check from the client-supplied collection value instead of the media item's actual source collection, and src/Sulu/Bundle/MediaBundle/Media/Manager/MediaManager.php allows MediaManager::move() to reassign the item without checking that source. An authenticated backend user with edit permission on one collection and knowledge of a target media identifier can name the allowed collection in the request, move an item out of a restricted collection, and then view or download content the user was not permitted to access. This issue is fixed in versions 2.6.25 and 3.0.8.

AnalysisAI

Broken object-level authorization in Sulu CMS's media move endpoint (prior to 2.6.25 and 3.0.8) allows authenticated backend users to bypass collection-level access controls and exfiltrate restricted media assets. The move API validates permissions against the attacker-supplied collection ID in the request body rather than the media item's actual stored source collection, enabling an authenticated user with edit rights on any collection to relocate content out of a restricted collection they cannot legitimately access. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires an authenticated Sulu backend user account with edit permissions on at least one media collection, plus knowledge or enumeration of a numeric media item ID belonging to a restricted collection. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 5.3 (Medium) accurately reflects the limited blast radius: low confidentiality and integrity impact, no availability component, and a PR:L requirement that gates exploitation behind a valid authenticated backend 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 to Sulu 2.6.25 or 3.0.8, both confirmed as patched releases per https://github.com/sulu/sulu/releases/tag/2.6.25 and https://github.com/sulu/sulu/releases/tag/3.0.8; the underlying fix is in commit 2b959de75d61b98433e42db462c246ed9e4ce793. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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EUVD-2026-68888 vulnerability details – vuln.today

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