GHSA-cg87-wmx4-v546

Source

https://github.com/advisories/GHSA-cg87-wmx4-v546

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/01/GHSA-cg87-wmx4-v546/GHSA-cg87-wmx4-v546.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-cg87-wmx4-v546

Aliases

CVE-2025-23207

Published

2025-01-17T21:22:56Z

Modified

2025-01-17T21:42:05.885332Z

Severity

6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator

Summary

KaTeX \htmlData does not validate attribute names

Details

Impact

KaTeX users who render untrusted mathematical expressions with renderToString could encounter malicious input using \htmlData that runs arbitrary JavaScript, or generate invalid HTML.

Patches

Upgrade to KaTeX v0.16.21 to remove this vulnerability.

Workarounds

Avoid use of or turn off the trust option, or set it to forbid \htmlData commands.
Forbid inputs containing the substring "\\htmlData".
Sanitize HTML output from KaTeX.

Details

\htmlData did not validate its attribute name argument, allowing it to generate invalid or malicious HTML that runs scripts.

For more information

If you have any questions or comments about this advisory:

Open an issue or security advisory in the KaTeX repository
Email us at katex-security@mit.edu

Database specific

{
    "nvd_published_at": null,
    "cwe_ids": [
        "CWE-116"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2025-01-17T21:22:56Z"
}

References

Affected packages

npm / katex

Package

Name: katex; View open source insights on deps.dev
Purl: pkg:npm/katex

Affected ranges

Type: SEMVER
Events: Introduced

0.12.0

Fixed

0.16.21

Database specific

{
    "last_known_affected_version_range": "<= 0.16.20"
}