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CVE-2023-22468

Status: ModifiedMedium (5.4)—

Discourse is an open source platform for community discussion. Versions prior to 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed), are vulnerable to cross-site Scripting. A maliciously crafted URL can be included in a post to carry out cross-site scripting attacks on sites with disabled or overly permissive CSP (Content Security Policy). Discourse's default CSP prevents this vulnerability. This vulnerability is patched in versions 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed). As a workaround, enable and/or restore your site's CSP to the default one provided with Discourse.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Discourse — Discourse

CWEs

References

Raw JSON (NVD)

Show
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      "value": "Discourse is an open source platform for community discussion. Versions prior to 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed), are vulnerable to cross-site Scripting. A maliciously crafted URL can be included in a post to carry out cross-site  scripting attacks on sites with disabled or overly permissive CSP (Content Security Policy). Discourse's default CSP prevents this vulnerability. This vulnerability is patched in versions 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed). As a workaround, enable and/or restore your site's CSP to the default one provided with Discourse."
    },
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      "value": "Discourse es una plataforma de código abierto para el debate comunitario. Las versiones anteriores a 2.8.13 (estable), 3.0.0.beta16 (beta) y 3.0.0beta16 (pruebas aprobadas) son vulnerables a cross-site scripting. Se puede incluir una URL creada con fines malintencionados en una publicación para llevar a cabo cross-site scripting en sitios con CSP (Política de seguridad de contenido) deshabilitada o demasiado permisiva. El CSP predeterminado de Discourse evita esta vulnerabilidad. Esta vulnerabilidad está parcheada en las versiones 2.8.13 (estable), 3.0.0.beta16 (beta) y 3.0.0beta16 (pruebas aprobadas). Como workaround, habilite y/o restaure el CSP de su sitio al predeterminado proporcionado con Discourse."
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