Which versions of PHP are affected by CVE-2026-3135?

A high-severity vulnerability in itsourcecode News Portal Project 1.0 allows unauthenticated or low-privileged attackers to exploit the admin category management function, potentially compromising…

Is there a public PoC exploit available for CVE-2026-3135?

Yes, a public proof-of-concept exploit is available for CVE-2026-3135. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-3135?

Within 24 hours: Immediately restrict network access to /admin/add-category.php using firewall rules or WAF policies; audit access logs for suspicious activity. Within 7 days: Evaluate feasibility of upgrading to a patched version or migrating to alternative content management solutions; conduct full administrative account audit and reset credentials. Within 30 days: Complete migration to a supported, patched platform or implement comprehensive compensating controls with continuous monitoring; perform security assessment of all admin endpoints.

PHP CVE-2026-3135

Q: What is the CVSS score of CVE-2026-3135?

CVE-2026-3135 has a CVSS 4.0 base score of 5.5 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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. EPSS exploitation probability: 0.0%.

MEDIUM

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)

2026-02-25 cna@vuldb.com

PHP SQLi

5.5

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

HIGH MEDIUM

CVSS changed

Apr 29, 2026 - 01:11 NVD

7.3 (HIGH) 5.5 (MEDIUM)

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Feb 25, 2026 - 20:20 vuln.today

Public exploit code

CVE Published

Feb 25, 2026 - 01:16 nvd

HIGH 7.3

DescriptionCVE.org

A weakness has been identified in itsourcecode News Portal Project 1.0. The impacted element is an unknown function of the file /admin/add-category.php. This manipulation of the argument Category causes sql injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.

AnalysisAI

SQL injection in itsourcecode News Portal Project 1.0 via the Category parameter in /admin/add-category.php allows unauthenticated remote attackers to manipulate database queries. Public exploit code is available for this vulnerability, and no patch has been released, leaving affected installations vulnerable to data exfiltration, modification, or deletion. …

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Risk assessment & exploitation conditions
Attack chain visualization
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Threat intelligence from 22 sources
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Send HTTP request to /admin/add-category.php

Exploit

Inject SQL payload in Category parameter

Execution

Execute arbitrary SQL queries

Impact

Extract or modify database contents

Access

Send HTTP request to /admin/add-category.php

Exploit

Inject SQL payload in Category parameter

Execution

Execute arbitrary SQL queries

Impact

Extract or modify database contents

Vulnerability AssessmentAI

Exploitation	itsourcecode News Portal Project 1.0 with /admin/add-category.php endpoint accessible. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 7.3 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	A remote attacker (requires authentication) could exploit this vulnerability to compromise the affected system.
Remediation	Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Immediately restrict network access to /admin/add-category.php using firewall rules or WAF policies; audit access logs for suspicious activity. …

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

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CVE-2026-3135 vulnerability details – vuln.today

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PHP CVE-2026-3135

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

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Attack ChainAIDerived

Vulnerability AssessmentAI

Recommended ActionAI

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External POC / Exploit Code