What is the CVSS score of CVE-2025-51818?

CVE-2025-51818 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of PHP are affected by CVE-2025-51818?

Organizations using MCCMS 2.7.0 should be aware of moderate risk from CVE-2025-51818, a file access vulnerability rated CVSS 5.4. This could allow unauthorized file access.

Is there a public PoC exploit available for CVE-2025-51818?

Yes, a public proof-of-concept exploit is available for CVE-2025-51818. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-51818?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

PHP CVE-2025-51818

MEDIUM

Files or Directories Accessible to External Parties (CWE-552)

2025-08-21 cve@mitre.org

PHP Path Traversal Information Disclosure Mccms

5.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:08 vuln.today

PoC Detected

Sep 24, 2025 - 00:02 vuln.today

Public exploit code

CVE Published

Aug 21, 2025 - 14:15 nvd

MEDIUM 5.4

DescriptionCVE.org

MCCMS 2.7.0 is vulnerable to Arbitrary file deletion in the Backups.php component. This allows an attacker to execute arbitrary commands

AnalysisAI

MCCMS 2.7.0 is vulnerable to Arbitrary file deletion in the Backups.php component. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-552. MCCMS 2.7.0 is vulnerable to Arbitrary file deletion in the Backups.php component. This allows an attacker to execute arbitrary commands Affected products include: Chshcms Mccms.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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CVE-2025-51818 vulnerability details – vuln.today

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PHP CVE-2025-51818

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code