CVE-2026-34428 HIGH

CVE-2026-34428: Vvveb < 1.0.8.1 SSRF via oEmbedProxy

Vendor Givanz
Product Vvveb
Weakness CWE-918 · SSRF
Published April 20, 2026
Last update May 8, 2026

CVSS base score

8.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

What the vulnerability does

01Description

Vvveb prior to 1.0.8.1 contains a server-side request forgery vulnerability in the oEmbedProxy action of the editor/editor module where the url parameter is passed directly to getUrl() via curl without scheme or destination validation. Authenticated backend users can supply file:// URLs to read arbitrary files readable by the web server process or http:// URLs targeting internal network addresses to probe internal services, with response bodies returned directly to the caller.

Key dates

02Disclosure timeline

April 20, 2026 CVE published
May 8, 2026 Record updated