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    4 vulnerabilities found for hollo by fedify-dev

    CVE-2026-25808 (GCVE-0-2026-25808)

    Vulnerability from nvd – Published: 2026-02-09 21:50 – Updated: 2026-02-10 21:23
    VLAI
    Title
    Hollo DMs get leaked and can be seen on Webfinger Browser
    Summary
    Hollo is a federated single-user microblogging software designed to be federated through ActivityPub. Prior to 0.6.20 and 0.7.2, there is a security vulnerability where DMs and followers-only posts were exposed through the ActivityPub outbox endpoint without authorization. This vulnerability is fixed in 0.6.20 and 0.7.2.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    fedify-dev hollo Affected: < 0.6.20, 0.7.2
    Affected: >= 7.0.0, < 0.7.2
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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        "title": "CISA ADP Vulnrichment"
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        "discovery": "UNKNOWN"
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      "title": "Hollo DMs get leaked and can be seen on Webfinger Browser"
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    CVE-2025-53941 (GCVE-0-2025-53941)

    Vulnerability from nvd – Published: 2025-07-17 14:01 – Updated: 2025-07-17 14:21
    VLAI
    Title
    Hollo renders posts received with form elements and allows submission
    Summary
    Hollo is a federated single-user microblogging software designed to be federated through ActivityPub. Versions prior to 0.6.5 allow HTML form elements to be submitted, making the software vulnerable to HTML injection. Version 0.6.5 fixes the issue.
    Severity
    6.1 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
    Assigner
    References
    Impacted products
    Vendor Product Version
    fedify-dev hollo Affected: < 0.6.5
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-25808 (GCVE-0-2026-25808)

    Vulnerability from cvelistv5 – Published: 2026-02-09 21:50 – Updated: 2026-02-10 21:23
    VLAI
    Title
    Hollo DMs get leaked and can be seen on Webfinger Browser
    Summary
    Hollo is a federated single-user microblogging software designed to be federated through ActivityPub. Prior to 0.6.20 and 0.7.2, there is a security vulnerability where DMs and followers-only posts were exposed through the ActivityPub outbox endpoint without authorization. This vulnerability is fixed in 0.6.20 and 0.7.2.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    fedify-dev hollo Affected: < 0.6.20, 0.7.2
    Affected: >= 7.0.0, < 0.7.2
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2025-53941 (GCVE-0-2025-53941)

    Vulnerability from cvelistv5 – Published: 2025-07-17 14:01 – Updated: 2025-07-17 14:21
    VLAI
    Title
    Hollo renders posts received with form elements and allows submission
    Summary
    Hollo is a federated single-user microblogging software designed to be federated through ActivityPub. Versions prior to 0.6.5 allow HTML form elements to be submitted, making the software vulnerable to HTML injection. Version 0.6.5 fixes the issue.
    Severity
    6.1 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
    Assigner
    References
    Impacted products
    Vendor Product Version
    fedify-dev hollo Affected: < 0.6.5
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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