Is CVE-2026-53960 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-53960?

CVE-2026-53960 has a CVSS v3 severity of MEDIUM (5.3).

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CVE-2026-53960

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.