VULNERABILITY INTELLIGENCE
CVE-2026-73629
CVSS score8.5 HIGH
EPSS probability0.32%
CISA KEVNot currently listed
Published2026-08-13
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Description
Serendipity before 2.6.0 contains a server-side request forgery vulnerability in the serendipity_url_allowed() filter that fails to block hex-encoded IPv4 addresses, IPv6 literals, and link-local ranges. Authenticated users with adminImagesAdd permission can bypass the filter using alternate address formats to request internal services and retrieve response bodies through the public uploads directory.
Weakness classification
- disclosure@vulncheck.com: CWE-918