What is the CVSS score of CVE-2025-55911?

CVE-2025-55911 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N. EPSS exploitation probability: 1.4%.

Which versions of PHP are affected by CVE-2025-55911?

CVE-2025-55911 presents notable security risk, a command injection vulnerability rated CVSS 6.5. Exploitation could allow attackers to execute code or inject malicious input.

Is there a public PoC exploit available for CVE-2025-55911?

Yes, a public proof-of-concept exploit is available for CVE-2025-55911. Prioritise patching immediately. EPSS: 1.4%.

How to fix or mitigate CVE-2025-55911?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Validate input sanitization for user-controlled parameters.

PHP CVE-2025-55911

MEDIUM

Command Injection (CWE-77)

2025-09-18 cve@mitre.org

Command Injection PHP Clipbucket

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:12 vuln.today

PoC Detected

Oct 31, 2025 - 17:13 vuln.today

Public exploit code

CVE Published

Sep 18, 2025 - 15:15 nvd

MEDIUM 6.5

DescriptionCVE.org

An issue Clip Bucket v.5.5.2 Build#90 allows a remote attacker to execute arbitrary codes via the file_downloader.php and the file parameter

AnalysisAI

An issue Clip Bucket v.5.5.2 Build#90 allows a remote attacker to execute arbitrary codes via the file_downloader.php and the file parameter. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Command Injection (CWE-77), which allows attackers to inject arbitrary commands into system command execution. An issue Clip Bucket v.5.5.2 Build#90 allows a remote attacker to execute arbitrary codes via the file_downloader.php and the file parameter Affected products include: Oxygenz Clipbucket.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use parameterized APIs, avoid shell execution, validate input with strict allowlists.

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CVE-2025-55911 vulnerability details – vuln.today

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PHP CVE-2025-55911

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

More from same product – last 7 days

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External POC / Exploit Code