Stored Cross-Site Scripting (XSS) in TastyIgniter Media Manager
CVE-2026-14856

6.3MEDIUM

Key Information:

Vendor

Media Manager

Status
Tastyigniter
Vendor
CVE Published:
27 July 2026

What is CVE-2026-14856?

A stored Cross-Site Scripting (XSS) vulnerability in the file upload functionality of the Media Manager in TastyIgniter v4.3.0, caused by insufficient validation and sanitization of SVG files. An authenticated user with low privileges can upload a malicious SVG file containing JavaScript code. When an administrator views that file, the code executes in the context of their browser. By chaining this vulnerability with a Cross-Site Request Forgery (CSRF) attack, an attacker can extract the administrator’s CSRF token and perform unauthorized actions—such as modifying credentials—thereby gaining full control of the administrative account.

Affected Version(s)

TastyIgniter 4.3.0

References

https://www.incibe.es/en/incibe-cert/notices/aviso/stored...
patch

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jonas Fernández
.