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    2 vulnerabilities found for discourse-footnote by discourse

    CVE-2021-43827 (GCVE-0-2021-43827)

    Vulnerability from nvd – Published: 2021-12-14 22:20 – Updated: 2024-08-04 04:03
    VLAI
    Title
    Inline footnotes wrapped in <a> tags can cause errors in discourse-footnotes
    Summary
    discourse-footnote is a library providing footnotes for posts in Discourse. ### Impact When posting an inline footnote wrapped in `<a>` tags (e.g. `<a>^[footnote]</a>`, the resulting rendered HTML would include a nested `<a>`, which is stripped by Nokogiri because it is not valid. This then caused a javascript error on topic pages because we were looking for an `<a>` element inside the footnote reference span and getting its ID, and because it did not exist we got a null reference error in javascript. Users are advised to update to version 0.2. As a workaround editing offending posts from the rails console or the database console for self-hosters, or disabling the plugin in the admin panel can mitigate this issue.
    Severity
    4.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
    CWE
    • CWE-755 - Improper Handling of Exceptional Conditions
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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          "value": "discourse-footnote is a library providing footnotes for posts in Discourse. ### Impact When posting an inline footnote wrapped in `\u003ca\u003e` tags (e.g. `\u003ca\u003e^[footnote]\u003c/a\u003e`, the resulting rendered HTML would include a nested `\u003ca\u003e`, which is stripped by Nokogiri because it is not valid. This then caused a javascript error on topic pages because we were looking for an `\u003ca\u003e` element inside the footnote reference span and getting its ID, and because it did not exist we got a null reference error in javascript. Users are advised to update to version 0.2. As a workaround editing offending posts from the rails console or the database console for self-hosters, or disabling the plugin in the admin panel can mitigate this issue."
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    CVE-2021-43827 (GCVE-0-2021-43827)

    Vulnerability from cvelistv5 – Published: 2021-12-14 22:20 – Updated: 2024-08-04 04:03
    VLAI
    Title
    Inline footnotes wrapped in <a> tags can cause errors in discourse-footnotes
    Summary
    discourse-footnote is a library providing footnotes for posts in Discourse. ### Impact When posting an inline footnote wrapped in `<a>` tags (e.g. `<a>^[footnote]</a>`, the resulting rendered HTML would include a nested `<a>`, which is stripped by Nokogiri because it is not valid. This then caused a javascript error on topic pages because we were looking for an `<a>` element inside the footnote reference span and getting its ID, and because it did not exist we got a null reference error in javascript. Users are advised to update to version 0.2. As a workaround editing offending posts from the rails console or the database console for self-hosters, or disabling the plugin in the admin panel can mitigate this issue.
    Severity
    4.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
    CWE
    • CWE-755 - Improper Handling of Exceptional Conditions
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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