html inputs of type password recorded in plaintext when converted to text inputs

Description

Highlight may record passwords on customer deployments when a password html input is switched to type="text" via a javascript “Show Password” button. This differs from the expected behavior which always obfuscates type="password" inputs.

Recommendation

Update the highlight.run package to the latest compatible version. Followings are version details:

• Affected version(s): < 6.0.0
• Patched version(s): 6.0.0

References

• GHSA-9qpj-qq2r-5mcc
• CVE-2023-33187
• CWE-319
• CAPEC-310
• OWASP 2021-A2
• OWASP 2021-A6

Related Issues

• jQuery UI vulnerable to XSS when refreshing a checkboxradio with an HTML-like initial text label - CVE-2022-31160
• angular vulnerable to regular expression denial of service via the <input type="url"> element - CVE-2023-26118
• Open WebUI vulnerable to Stored DOM XSS via prompts when 'Insert Prompt as Rich Text' is enabled resulting in ATO/RCE - CVE-2025-64495
• md-fileserver: Stored/Reflected XSS when viewing Markdown (raw HTML allowed) - CVE-2026-46492

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Tags:

npm

highlight.run