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    5 vulnerabilities by KaTeX

    CVE-2025-23207 (GCVE-0-2025-23207)

    Vulnerability from cvelistv5 – Published: 2025-01-17 21:25 – Updated: 2025-01-17 21:32
    VLAI
    Title
    \htmlData does not validate attribute names in KaTeX
    Summary
    KaTeX is a fast, easy-to-use JavaScript library for TeX math rendering on the web. KaTeX users who render untrusted mathematical expressions with `renderToString` could encounter malicious input using `\htmlData` that runs arbitrary JavaScript, or generate invalid HTML. Users are advised to upgrade to KaTeX v0.16.21 to remove this vulnerability. Users unable to upgrade should avoid use of or turn off the `trust` option, or set it to forbid `\htmlData` commands, forbid inputs containing the substring `"\\htmlData"` and sanitize HTML output from KaTeX.
    Severity
    6.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-116 - Improper Encoding or Escaping of Output
    Assigner
    References
    Impacted products
    Vendor Product Version
    KaTeX KaTeX Affected: >= 0.12.0, < 0.16.21
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2024-28246 (GCVE-0-2024-28246)

    Vulnerability from cvelistv5 – Published: 2024-03-25 20:00 – Updated: 2024-08-02 00:48
    VLAI
    Title
    KaTeX is missing normalization of the protocol in URLs allows bypassing forbidden protocols
    Summary
    KaTeX is a JavaScript library for TeX math rendering on the web. Code that uses KaTeX's `trust` option, specifically that provides a function to blacklist certain URL protocols, can be fooled by URLs in malicious inputs that use uppercase characters in the protocol. In particular, this can allow for malicious input to generate `javascript:` links in the output, even if the `trust` function tries to forbid this protocol via `trust: (context) => context.protocol !== 'javascript'`. Upgrade to KaTeX v0.16.10 to remove this vulnerability.
    Severity
    5.5 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-184 - Incomplete List of Disallowed Inputs
    • CWE-697 - Incorrect Comparison
    Assigner
    References
    Impacted products
    Vendor Product Version
    KaTeX KaTeX Affected: >= 0.11.0, < 0.16.10
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2024-28245 (GCVE-0-2024-28245)

    Vulnerability from cvelistv5 – Published: 2024-03-25 19:53 – Updated: 2024-08-02 00:48
    VLAI
    Title
    KaTeX's \includegraphics does not escape filename
    Summary
    KaTeX is a JavaScript library for TeX math rendering on the web. KaTeX users who render untrusted mathematical expressions could encounter malicious input using `\includegraphics` that runs arbitrary JavaScript, or generate invalid HTML. Upgrade to KaTeX v0.16.10 to remove this vulnerability.
    Severity
    6.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-116 - Improper Encoding or Escaping of Output
    Assigner
    References
    Impacted products
    Vendor Product Version
    KaTeX KaTeX Affected: >= 0.11.0, < 0.6.10
    		Create a notification for this product.
    katex katex Affected: 0.11.0 , < 0.16.10 (custom)
        cpe:2.3:a:katex:katex:0.11.0:*:*:*:*:*:*:*
    		 Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2024-28244 (GCVE-0-2024-28244)

    Vulnerability from cvelistv5 – Published: 2024-03-25 19:45 – Updated: 2024-08-02 00:48
    VLAI
    Title
    KaTeX's maxExpand bypassed by Unicode sub/superscripts
    Summary
    KaTeX is a JavaScript library for TeX math rendering on the web. KaTeX users who render untrusted mathematical expressions could encounter malicious input using `\def` or `\newcommand` that causes a near-infinite loop, despite setting `maxExpand` to avoid such loops. KaTeX supports an option named maxExpand which aims to prevent infinitely recursive macros from consuming all available memory and/or triggering a stack overflow error. Unfortunately, support for "Unicode (sub|super)script characters" allows an attacker to bypass this limit. Each sub/superscript group instantiated a separate Parser with its own limit on macro executions, without inheriting the current count of macro executions from its parent. This has been corrected in KaTeX v0.16.10.
    Severity
    6.5 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    KaTeX KaTeX Affected: >= 0.15.4, < 0.16.10
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2024-28243 (GCVE-0-2024-28243)

    Vulnerability from cvelistv5 – Published: 2024-03-25 19:40 – Updated: 2026-02-05 15:26
    VLAI
    Title
    KaTeX's maxExpand bypassed by \edef
    Summary
    KaTeX is a JavaScript library for TeX math rendering on the web. KaTeX users who render untrusted mathematical expressions could encounter malicious input using `\edef` that causes a near-infinite loop, despite setting `maxExpand` to avoid such loops. This can be used as an availability attack, where e.g. a client rendering another user's KaTeX input will be unable to use the site due to memory overflow, tying up the main thread, or stack overflow. Upgrade to KaTeX v0.16.10 to remove this vulnerability.
    Severity
    6.5 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    KaTeX KaTeX Affected: >= 0.12.0, < 0.16.10
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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