CVE-2026-30830

MEDIUM

6.1

Description

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.

CVE Details

CVSS v3.1 Score6.1

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published3/7/2026

Last Modified3/11/2026

Sourcenvd

Honeypot Sightings0

Affected Products

kepano:defuddle

Weaknesses (CWE)

CWE-79

References

https://github.com/kepano/defuddle/commit/f154cb740ee603431b69638273af737a27156df9(security-advisories@github.com)

https://github.com/kepano/defuddle/security/advisories/GHSA-5mq8-78gm-pjmq(security-advisories@github.com)

IOC Correlations

No correlations recorded

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