Is CVE-2026-28219 actively exploited?

No active exploitation of CVE-2026-28219 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-28219 be exploited remotely?

Yes. CVE-2026-28219 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-28219?

CVE-2026-28219 has a CVSS score of 4.3 (MEDIUM).

HOME VULNERABILITIESCVE-2026-28219

MEDIUM

CVE-2026-28219

CWE-915Published: February 26, 2026· Updated: Mar 2, 2026

4.3

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:16.4th

Official Description

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, an improper authorization check in the topic management logic allows authenticated users to modify privileged attributes of their topics. By manipulating specific parameters in a PUT or POST request, a regular user can elevate a topic’s status to a site-wide notice or banner, bypassing intended administrative restrictions. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. There are no practical workarounds to prevent this behavior other than applying the security patch. Administrators concerned about unauthorized promotions should audit recent changes to site banners and global notices until the fix is deployed.

NVD Source

Technical Analysis

CVE-2026-28219 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.