What is the CVSS score of CVE-2026-25510?

CVE-2026-25510 has a CVSS 3.1 base score of 9.9 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.4%.

Which versions of PHP are affected by CVE-2026-25510?

A critical vulnerability (CVSS 9.9) in CI4MS CodeIgniter CMS allows unauthenticated attackers to execute arbitrary code and potentially gain full system control.. A patch is available.

Is there a public PoC exploit available for CVE-2026-25510?

Yes, a public proof-of-concept exploit is available for CVE-2026-25510. Prioritise patching immediately. EPSS: 0.4%.

How to fix or mitigate CVE-2026-25510?

Within 24 hours: Identify all CI4MS instances in production and development environments; assess internet exposure and implement emergency network restrictions if patching cannot be completed immediately. Within 7 days: Apply the available vendor patch to all affected systems and validate successful deployment. Within 30 days: Conduct security audit of affected systems for signs of prior compromise, rotate compromised credentials, and review access logs for exploitation indicators.

PHP CVE-2026-25510

CRITICAL

Code Injection (CWE-94)

2026-02-03 security-advisories@github.com

GHSA-gp56-f67f-m4px

PHP RCE Ci4ms

9.9

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

9.9 CRITICAL

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

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Feb 10, 2026 - 18:41 vuln.today

Public exploit code

Patch released

Feb 10, 2026 - 18:41 nvd

Patch available

CVE Published

Feb 03, 2026 - 22:16 nvd

CRITICAL 9.9

DescriptionGitHub Advisory

CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to version 0.28.5.0, an authenticated user with file editor permissions can achieve Remote Code Execution (RCE) by leveraging the file creation and save endpoints, an attacker can upload and execute arbitrary PHP code on the server. This issue has been patched in version 0.28.5.0.

AnalysisAI

CI4MS (CodeIgniter 4 CMS skeleton) has a code injection vulnerability (CVSS 9.9) allowing authenticated users to execute arbitrary PHP code through the CMS module system.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Authenticate as user with file editor permissions

Exploit

Access file creation endpoint

Execution

Upload malicious PHP code

Impact

Execute arbitrary code on server

Access

Authenticate as user with file editor permissions

Exploit

Access file creation endpoint

Execution

Upload malicious PHP code

Impact

Execute arbitrary code on server

Vulnerability AssessmentAI

Exploitation	Authenticated user account with file editor permissions in CI4MS prior to version 0.28.5.0. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 9.9 with PoC and patch. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An authenticated CMS user injects PHP code through the module system, gaining server-side code execution and access to all CMS data and the underlying server.
Remediation	Update CI4MS. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify all CI4MS instances in production and development environments; assess internet exposure and implement emergency network restrictions if patching cannot be completed immediately. …

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

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CVE-2026-25510 vulnerability details – vuln.today

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PHP CVE-2026-25510

Severity by source

CVSS VectorGitHub Advisory

Lifecycle Timeline

DescriptionGitHub Advisory

AnalysisAI

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Attack ChainAIDerived

Vulnerability AssessmentAI

Recommended ActionAI

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External POC / Exploit Code