Vulnerability · Published Oct 1, 2026 · Assigned by GitHub_M

CVE-2026-55232Vvveb: Server-side request forgery in Vvveb via IPv6 bypass of validateUrl() in editor oEmbed proxy

High 7.6

In plain English

A high-severity server-side request forgery in Vvveb from givanz. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).

Severity (CVSS 3.1)7.6High

Exploit odds (30 days)0.4%top 66.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to version 1.0.8.6, Vvveb's SSRF guard resolves a host with an IPv4-only function and never inspects IPv6, so any host that lacks an A record passes a private-range check. Editor oEmbed proxy fetches an attacker-supplied URL server side and reflects a response body, so an authenticated admin-panel user (default role site_admin or higher) can read internal-only services and cloud metadata, including IAM credentials, using an IPv6 literal or a domain that carries only an AAAA record. This issue has been patched in version 1.0.8.6.

Affected products (as reported)

Vendor	Product	Versions
givanz	Vvveb	< 1.0.8.6

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N

References

https://github.com/givanz/Vvveb/security/advisories/GHSA-r6g4-5m3x-xrqj x_refsource_CONFIRM
https://github.com/givanz/Vvveb/commit/e27d1ef097a8502c33f8cc94271c948407c5dce3 x_refsource_MISC
https://github.com/givanz/Vvveb/releases/tag/1.0.8.6 x_refsource_MISC