Is CVE-2026-28274 actively exploited?

No active exploitation of CVE-2026-28274 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-28274 be exploited remotely?

Yes. CVE-2026-28274 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-28274?

CVE-2026-28274 has a CVSS score of 8.7 (HIGH).

HOME VULNERABILITIESCVE-2026-28274

HIGH

CVE-2026-28274

CWE-79Published: February 26, 2026· Updated: Feb 27, 2026

8.7

CVSS v3.1

EPSS:0.07%probability of exploitation in 30 daysPercentile:21.0th

Official Description

Initiative is a self-hosted project management platform. Versions of the application prior to 0.32.4 are vulnerable to Stored Cross-Site Scripting (XSS) in the document upload functionality. Any user with upload permissions within the "Initiatives" section can upload a malicious `.html` or `.htm` file as a document. Because the uploaded HTML file is served under the application's origin without proper sandboxing, the embedded JavaScript executes in the context of the application. As a result, authentication tokens, session cookies, or other sensitive data can be exfiltrated to an attacker-controlled server. Additionally, since the uploaded file is hosted under the application's domain, simply sharing the direct file link may result in execution of the malicious script when accessed. Version 0.32.4 fixes the issue.

NVD Source

Technical Analysis

CVE-2026-28274 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.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.7.

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.