Vulnerability in Katex
CVE-2024-28246
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (32.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Katex — versions >= 0.11.0, < 0.16.10
Weakness classification (CWE)
References
- github.com/KaTeX/KaTeX/security/advisories/GHSA-3wc5-fcw2-2329 (Third Party Advisory, Mitigation)
- github.com/KaTeX/KaTeX/commit/fc5af64183a3ceb9be9d1c23a275999a728593de (Patch)
Frequently asked questions
- What is CVE-2024-28246?
- CVE-2024-28246 is a medium-severity vulnerability in Katex, classified under Incomplete List of Disallowed Inputs. CVSS score: 5.5/10. Published 2024-03-25.
- How severe is CVE-2024-28246?
- Medium severity. CVSS v3 base score is 5.5 out of 10.