CVE-2026-30830

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.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/kepano/defuddle/commit/f154cb740ee603431b69638273af737a27156df9	Patch
https://github.com/kepano/defuddle/security/advisories/GHSA-5mq8-78gm-pjmq	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:kepano:defuddle:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2026-03-07 06:16

Updated : 2026-06-17 10:32

NVD link : CVE-2026-30830

Mitre link : CVE-2026-30830

CVE.ORG link : CVE-2026-30830

JSON object : View

Products Affected

kepano

defuddle

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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