Which versions of PHP are affected by CVE-2026-3070?

Organizations using A vulnerability should be aware of moderate risk from CVE-2026-3070, a cross-site scripting vulnerability rated CVSS 4.3.

Is there a public PoC exploit available for CVE-2026-3070?

Yes, a public proof-of-concept exploit is available for CVE-2026-3070. Prioritise patching immediately. EPSS: 0.0%.

PHP CVE-2026-3070

Q: What is the CVSS score of CVE-2026-3070?

CVE-2026-3070 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/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%.

LOW

Cross-site Scripting (XSS) (CWE-79)

2026-02-24 cna@vuldb.com

PHP XSS File Upload

2.1

CVSS 4.0

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/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

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

4.3 (MEDIUM) 2.1 (LOW)

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Feb 24, 2026 - 21:04 vuln.today

Public exploit code

CVE Published

Feb 24, 2026 - 05:17 nvd

MEDIUM 4.3

DescriptionNVD

A vulnerability was detected in SourceCodester Modern Image Gallery App 1.0. Affected by this vulnerability is an unknown functionality of the file upload.php. The manipulation of the argument filename results in cross site scripting. The attack may be launched remotely. The exploit is now public and may be used.

AnalysisAI

Reflected XSS in SourceCodester Modern Image Gallery App 1.0 allows unauthenticated remote attackers to inject malicious scripts through the filename parameter in upload.php. Public exploit code exists for this vulnerability, though it requires user interaction to succeed. …

RemediationAI

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-3070 vulnerability details – vuln.today

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