CVE-2026-30830 (GCVE-0-2026-30830)
Vulnerability from cvelistv5 – Published: 2026-03-07 05:49 – Updated: 2026-03-10 17:58
VLAI
EPSS
VEX
Title
Defuddle: XSS via unescaped string interpolation in _findContentBySchemaText image tag
Summary
Defuddle cleans up HTML pages. Prior to version 0.9.0, the _findContentBySchemaText method in src/defuddle.ts interpolates image src and alt attributes directly into an HTML string without escaping. An attacker can use a " in the alt attribute to break out of the attribute context and inject event handler. This issue has been patched in version 0.9.0.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-10 17:45 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
GitHub_M
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kepano/defuddle/security/advis… | x_refsource_CONFIRM |
| https://github.com/kepano/defuddle/commit/f154cb7… | x_refsource_MISC |
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