VULNERABILITY INTELLIGENCE

CVE-2026-53960

CVSS score5.3 MEDIUM
EPSS probability0.31%
CISA KEVNot currently listed
Published2026-08-17
Last modified2026-09-18
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Description

Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, hidden or otherwise unviewable first-post content was leaked as an excerpt in the publicly-served Q&A (QAPage) JSON-LD structured data, exposing it to any unauthenticated visitor and to search-engine crawlers. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.

Weakness classification

  • security-advisories@github.com: CWE-862

Primary references