CVE-2026-30830

EUVD-2026-10118
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
kepanodefuddle
𝑥
< 0.9.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/kepano/defuddle/commit/f154cb740ee603431b69638273af737a27156df9
https://github.com/kepano/defuddle/security/advisories/GHSA-5mq8-78gm-pjmq