CVE-2026-30891CWE-200

Discourse hasUnauthorized Exposure of Private User Action Types

Medium · published March 20, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
32.5
In the wild
Unconfirmed
What it is

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, a user could access another user's private activity due to insufficient authorization checks in the user actions endpoint. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00394 · 32.5th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2026-03-20T03:02Z
EPSS history
Timeline
  • 20 MAR 03:02Z
    Discourse hasUnauthorized Exposure of Private User Action Types
    cvelistv5