Medium 6.1Published Mar 7, 2026

CVE-2026-30830Defuddle cleans up HTML pages.

Updated under an hour ago (2026-10-19 08:00 UTC)

Does this affect you?

It affects kepano defuddle. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for kepano defuddle

Exploited in the last 30 days

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: 6.1 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

kepano defuddle kepano:defuddle	before 0.9.0	NVD

References

https://github.com/kepano/defuddle/commit/f154cb740ee603431b69638273af737a27156df9patch
https://github.com/kepano/defuddle/security/advisories/GHSA-5mq8-78gm-pjmqexploit, mitigation, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.