Shopware: SSRF in Media External-Link Endpoint Bypasses IP Validation

published 2026-06-04 5 mo ago modified 2026-09-10 1 mo ago also GHSA-gq96-5pfx-f4vc , EUVD-2026-48378

cvss: 4.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits: 0; none known

Shopware is an open commerce platform. Prior to 6.6.10.18 and 6.7.10.1, the `/api/_action/media/external-link` endpoint allows authenticated admin users to make server-side HTTP HEAD requests to arbitrary internal IP addresses. While the parallel `uploadFromURL` flow validates target IPs against private/reserved ranges via `FileUrlValidator`, the `linkURL` flow only performs a URL format check (regex for `http://` or `https://` prefix), allowing SSRF to internal network services and cloud metadata endpoints. This issue is fixed in versions 6.6.10.18 and 6.7.10.1.

Patch / fix

fixed in 2 links 2

packagist shopware/core 6.7.10.1
packagist shopware/platform 6.7.10.1

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 3 mo ago (2026-07-23)

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.1	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
GitHub	3.1	4.1	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
packagist	shopware/core	>=6.7.0.0, <6.7.10.1	6.7.10.1
packagist	shopware/platform	>=6.7.0.0, <6.7.10.1	6.7.10.1

Affected products

shopware shopware
shopware platform

Classification

Weakness

CWE-918 Server-Side Request Forgery

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary