Is CVE-2026-27621 actively exploited?

No active exploitation of CVE-2026-27621 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-27621 be exploited remotely?

Yes. CVE-2026-27621 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-27621?

CVE-2026-27621 has a CVSS score of 5.4 (MEDIUM) and an EPSS exploitation probability of 0.04%.

HOME VULNERABILITIESCVE-2026-27621

MEDIUM

CVE-2026-27621

CWE-79Published: February 25, 2026· Updated: Feb 27, 2026

5.4

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:13.3th

Official Description

TypiCMS is a multilingual content management system based on the Laravel framework. A Stored Cross-Site Scripting (XSS) vulnerability exists in the file upload module of TypiCMS prior to version 16.1.7. The application allows users with file upload permissions to upload SVG files. While there is a MIME type validation, the content of the SVG file is not sanitized. An attacker can upload a specially crafted SVG file containing malicious JavaScript code. When another user (such as an administrator) views or accesses this file through the application, the script executes in their browser, leading to a compromise of that user's session. The issue is exacerbated by a bug in the SVG parsing logic, which can cause a 500 error if the uploaded SVG does not contain a `viewBox` attribute. However, this does not mitigate the XSS vulnerability, as an attacker can easily include a valid `viewBox` attribute in their malicious payload. Version 16.1.7 of TypiCMS Core fixes the issue.

NVD Source

Technical Analysis

CVE-2026-27621 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.