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    2 vulnerabilities by cedar2025

    CVE-2026-39912 (GCVE-0-2026-39912)

    Vulnerability from nvd – Published: 2026-04-09 18:35 – Updated: 2026-06-23 16:16
    VLAI
    Title
    v2board / Xboard Authentication Token Exposure via loginWithMailLink
    Summary
    V2Board 1.6.1 through 1.7.4 and Xboard through 0.1.9 expose authentication tokens in HTTP response bodies of the loginWithMailLink endpoint when the login_with_mail_link_enable feature is active. Unauthenticated attackers can POST to the loginWithMailLink endpoint with a known email address to receive the full authentication URL in the response, then exchange the token at the token2Login endpoint to obtain a valid bearer token with complete account access including admin privileges.
    Severity
    9.1 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
    9.1 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-201 - Insertion of Sensitive Information Into Sent Data
    Assigner
    References
    Impacted products
    Vendor Product Version
    v2board v2board Affected: 1.6.1 , ≤ 1.7.4 (semver)
    Affected: bdb10bed32c5f37df2f0872c3cb354e9b7a293bd , ≤ 0ca47622a50116d0ddd7ffb316b157afb57d25e8 (git)
    		Create a notification for this product.
    cedar2025 Xboard Affected: 0 , ≤ 0.1.9 (semver)
    Unaffected: 121511523f04882ec0c7447acd9b8ebcb8a47957 (git)
    		Create a notification for this product.
    Credits
    Valentin Lobstein (Chocapikk)
    Show details on NVD website
    To clipboard 

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    CVE-2026-39912 (GCVE-0-2026-39912)

    Vulnerability from cvelistv5 – Published: 2026-04-09 18:35 – Updated: 2026-06-23 16:16
    VLAI
    Title
    v2board / Xboard Authentication Token Exposure via loginWithMailLink
    Summary
    V2Board 1.6.1 through 1.7.4 and Xboard through 0.1.9 expose authentication tokens in HTTP response bodies of the loginWithMailLink endpoint when the login_with_mail_link_enable feature is active. Unauthenticated attackers can POST to the loginWithMailLink endpoint with a known email address to receive the full authentication URL in the response, then exchange the token at the token2Login endpoint to obtain a valid bearer token with complete account access including admin privileges.
    Severity
    9.1 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
    9.1 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-201 - Insertion of Sensitive Information Into Sent Data
    Assigner
    References
    Impacted products
    Vendor Product Version
    v2board v2board Affected: 1.6.1 , ≤ 1.7.4 (semver)
    Affected: bdb10bed32c5f37df2f0872c3cb354e9b7a293bd , ≤ 0ca47622a50116d0ddd7ffb316b157afb57d25e8 (git)
    		Create a notification for this product.
    cedar2025 Xboard Affected: 0 , ≤ 0.1.9 (semver)
    Unaffected: 121511523f04882ec0c7447acd9b8ebcb8a47957 (git)
    		Create a notification for this product.
    Credits
    Valentin Lobstein (Chocapikk)
    Show details on NVD website
    To clipboard 

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