CVE-2026-27021CWE-862

Discourse: Poll voters endpoint lacked post visibility checks

Medium · published February 26, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
28.1
In the wild
Unconfirmed
What it is

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, the voters endpoint in the poll plugin lacked post visibility checks which allowed unauthorized access to voters details of polls in any post. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00356 · 28.1th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-02-26T19:50Z
EPSS history
Timeline
  • 26 FEB 19:50Z
    Discourse: Poll voters endpoint lacked post visibility checks
    cvelistv5