Is CVE-2026-27151 actively exploited?

No active exploitation of CVE-2026-27151 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-27151 be exploited remotely?

Yes. CVE-2026-27151 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-27151?

CVE-2026-27151 has a CVSS score of 2.7 (LOW).

HOME VULNERABILITIESCVE-2026-27151

LOW

CVE-2026-27151

CWE-862Published: February 26, 2026· Updated: Mar 2, 2026

2.7

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.8th

Official Description

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, the `move_posts` action only checked `can_move_posts?` on the source topic but never validated write permissions on the destination topic. This allowed TL4 users and category group moderators to move posts into topics in categories where they lack posting privileges (e.g., read-only categories or categories with group-restricted write access). Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.

NVD Source

Technical Analysis

CVE-2026-27151 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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