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EXPOSURES › CVE-2026-53963

CVE-2026-53963

HIGH
DETAIL
SourceNVD · cve Published2026-07-09 CVSS7.3 Referencehttps://nvd.nist.gov/vuln/detail/CVE-2026-53963 ↗
SHAME 25/100

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 imp

▸ RECOMMENDED ACTION  Patch the affected products and confirm your instances are covered.

PLAYERS IMPLICATED
discourse · vendordiscourse · product
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.

AFFECTED FEDRAMP PRODUCTS · 0
No correlated FedRAMP products.