CVE-2026-91159 Discourse: Stored oEmbed HTML injection via allowed iframe

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, oEmbed processing treated an entire attacker-controlled HTML fragment as trusted when the fragment contained an iframe whose source matched the configured allowlist. A user with posting permissio...

PT-2026-114332

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2026.9.0 Discourse versions prior to 2026.8.1 Discourse versions prior to 2026.7.3 Discourse versions prior to 2026.1.9 Description An issue exists in oEmbed processing where an entire attacker-controlled HTML...

CVE-2026-91159: Improper Neutralization of Input During Web Page Generation

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, oEmbed processing treated an entire attacker-controlled HTML fragment as trusted when the fragment contained an iframe whose source matched the configured allowlist. A user with posting permissio...

Exploit for Exposure of Sensitive Information to an Unauthorized Actor in Microsoft

SCTT-2026-33-0002: DWM Visual-Field Singularity 📡 Theoret...

Exploit for Exposure of Sensitive Information to an Unauthorized Actor in Microsoft

SCTT-2026-33-0002: DWM Visual-Field Singularity 📡 Theoret...