CVE-2026-33514CWE-862

Discourse: Information Disclosure in Form Template API Due to Missing Authorization

Medium · published May 19, 2026

CVSS v4.0
6.0
EPSS
0%
Percentile
21.6
In the wild
Unconfirmed
What it is

Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, an authenticated user on a Discourse instance with the form templates feature enabled can read the name and structured content of form templates that are intended exclusively for categories they are not authorized to access. Impact is limited to disclosure of site configuration metadata. This issue has been fixed in versions 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1.

The record
Technical detail
CVSS v4.0
6.0 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00301 · 21.6th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-05-19T00:59Z
EPSS history
Timeline
  • 19 MAY 00:59Z
    Discourse: Information Disclosure in Form Template API Due to Missing Authorization
    cvelistv5