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

11 Mar 2026, 18:50

Type	Values Removed	Values Added
References	~~() https://github.com/kepano/defuddle/commit/f154cb740ee603431b69638273af737a27156df9 -~~	() https://github.com/kepano/defuddle/commit/f154cb740ee603431b69638273af737a27156df9 - Patch
References	~~() https://github.com/kepano/defuddle/security/advisories/GHSA-5mq8-78gm-pjmq -~~	() https://github.com/kepano/defuddle/security/advisories/GHSA-5mq8-78gm-pjmq - Exploit, Mitigation, Vendor Advisory
First Time		Kepano defuddle Kepano
Summary		(es) Defuddle limpia páginas HTML. Antes de la versión 0.9.0, el método _findContentBySchemaText en src/defuddle.ts interpola los atributos src y alt de las imágenes directamente en una cadena HTML sin escapar. Un atacante puede usar una ' en el atributo alt para salir del contexto del atributo e inyectar un gestor de eventos. Este problema ha sido parcheado en la versión 0.9.0.
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.1
CPE		cpe:2.3:a:kepano:defuddle::::::node.js::*

07 Mar 2026, 06:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-07 06:16

Updated : 2026-03-11 18:50

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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