What is the CVSS score of CVE-2025-70457?

CVE-2025-70457 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Is there a public PoC exploit available for CVE-2025-70457?

Yes, a public proof-of-concept exploit is available for CVE-2025-70457. Prioritise patching immediately. EPSS: 0.3%.

How to fix or mitigate CVE-2025-70457?

Within 24 hours: Immediately inventory all systems running Modern Image Gallery App and isolate affected instances from production networks if operationally feasible. Within 7 days: Implement emergency compensating controls including WAF rules to block file uploads, disable the upload feature if business-critical, or apply strict file-type whitelisting. Within 30 days: Plan migration to a patched version or alternative solution; contact the vendor for patch release timeline and consider alternative gallery applications if patching timeline is unclear.

Modern Image Gallery App CVE-2025-70457

CRITICAL

Unrestricted Upload of File with Dangerous Type (CWE-434)

2026-01-23 cve@mitre.org

PHP RCE Modern Image Gallery App Remyandrade

9.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-434 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V5 - File Handling File type validation, storage isolation MITRE ATT&CK 2 techniques across 2 tactics: Command and Control, Persistence The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS 9.8 with PoC. Sourcecodester applications are frequently used as learning projects and sometimes deployed in production without proper hardening.
Exploit ScenarioDerived	An attacker uploads a PHP web shell through the gallery upload endpoint, then accesses it to execute arbitrary commands on the server.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Sourcecodester Modern Image Gallery App v1.0 has an arbitrary file upload in the gallery endpoint allowing unauthenticated remote code execution.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 21:54 CVSS 9.8

Unrestricted file upload in Sourcecodester Image Gallery enables unauthenticated RCE.

RemediationAI

Do not use this application in production. If deployed, restrict file upload types and disable PHP execution in upload directories.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The gallery/upload endpoint in Modern Image Gallery App v1.0 has a CWE-434 unrestricted file upload that accepts PHP files, which are then accessible and executable through the web server.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

PoC Detected

Jan 30, 2026 - 17:59 vuln.today

Public exploit code

CVE Published

Jan 23, 2026 - 22:16 nvd

CRITICAL 9.8

DescriptionCVE.org

A Remote Code Execution (RCE) vulnerability exists in Sourcecodester Modern Image Gallery App v1.0 within the gallery/upload.php component. The application fails to properly validate uploaded file contents. Additionally, the application preserves the user-supplied file extension during the save process. This allows an unauthenticated attacker to upload arbitrary PHP code by spoofing the MIME type as an image, leading to full system compromise.

Executive ViewAI

Why It Matters

A critical vulnerability in Modern Image Gallery App (versions up to 1.0) allows attackers to upload malicious files without restriction, potentially enabling remote code execution and complete system compromise. With a public exploit available and no patch released, any organization running this application is at immediate risk of data breach, service disruption, and lateral network movement.

Business Impact: Severe

Compensating Controls

Deploy Web Application Firewall (WAF) rules to block upload endpoints or restrict file types to images only (whitelist: .jpg, .png, .gif). Implement strict file extension and MIME-type validation on upload handlers. Disable the gallery upload feature entirely if not critical to operations. Apply network segmentation to limit lateral movement from compromised gallery instances. Monitor upload directories for suspicious file execution attempts. Enforce application-level sandboxing or containerization to restrict file execution capabilities.

Threat Intelligence Overview

EPSS Score

0.3%

Top 50% exploitable

Exploit

POC

Public exploit code exists

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC Yes

EPSS 0.3%

Patch available No

Active threat No

Deciding rule

CRITICAL severity + public POC available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.