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    CVE-2023-36473

    Discourse is an open source discussion platform. A CSP (Content Security Policy) nonce reuse vulnerability could allow XSS attacks to bypass CSP protection. There are no known XSS vectors at the moment, but should one be discovered, this vulnerability would allow the XSS attack to completely bypass CSP. The vulnerability is patched in the latest tests-passed, beta and stable branches.

    Published:Jul 13, 2023
    Last Modified:Nov 21, 2024
    EPS:Jul 13, 2023
    EPSS Score:0.0015
    CVSS Score:6.8

    Affected Products

    Vendor
    Discourse
    Product
    Discourse

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-55704 (CVSS 4.3) — Discourse is an open-source discussion platform. Prior o 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, users who…
    CVE-2026-55674 (CVSS 9.3) — Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, an unaut…
    CVE-2026-59829 (CVSS 4.3) — Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.1, on sites…
    CVE-2026-72732 (CVSS 4.3) — Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, the disc…
    CVE-2026-72731 (CVSS 7.1) — Discourse is an open-source discussion platform. From 2026.1.0-latest until 2026.1.7, 2026.6.2, 2026.7.1, and …
    CVE-2026-72730 (CVSS 8.7) — Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, the Rich…
    CVE-2026-72729 (CVSS 2) — Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, the disc…
    CVE-2026-72728 (CVSS 6.3) — Discourse is an open-source discussion platform. Prior to 2026.1.7, an authenticated user could submit special…
    CVE-2026-72727 (CVSS 4.8) — Discourse is an open-source discussion platform. Prior to 026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, a low-pri…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High