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Defuddle: XSS via unescaped string interpolation in _findContentBySchemaText image tag
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.
References
-
https://github.com/kepano/defuddle/security/advisories/GHSA-5mq8-78gm-pjmq x_refsource_CONFIRM
Affected products
defuddle
- ==< 0.9.0