Security Advisory

CVE-2026-53963

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-09 22:05:46

Last updated 2026-07-14 01:19:05

Assigner GitHub_M

CVSS score 7.3

State PUBLISHED

Description

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a malicious second factor name on an attacker-controlled account was not escaped in the delete confirmation dialog, allowing stored cross-site scripting when an administrator impersonated that account. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

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