Cross Site Scripting Vulnerability in SourceCodester Modern Image Gallery App
CVE-2026-3070

5.3MEDIUM

Key Information:

Vendor

Sourcecodester
Status
Modern Image Gallery App
Vendor
CVE Published:
24 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3070?

The SourceCodester Modern Image Gallery App version 1.0 is susceptible to a cross site scripting vulnerability through its upload.php file. An attacker can exploit this by manipulating the 'filename' parameter, potentially launching the attack remotely. This exploit is now publicly available, highlighting the necessity for immediate security measures to safeguard users against potential threats.

Affected Version(s)

Modern Image Gallery App 1.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-3070 - Proof of Concept

References

https://vuldb.com/?id.347425
vdb-entrytechnical-description
https://vuldb.com/?ctiid.347425
signaturepermissions-required
https://vuldb.com/?submit.757768
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

SHU for security (VulDB User)
.