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TI-2026-71945 Aliases CVE-2026-104937GHSA-pfh5-g6h6-v95h

Stored cross-site scripting in Shopware exposes admin tokens

Priority MEDIUM 44CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

Shopware from version 6.7 accepts attacker-uploaded HTML files and serves them as text/html without effective security headers, which enables stored cross-site scripting (CWE-79). When an administrator views a malicious uploaded file, an attacker can steal the administrator's authentication token. If that administrator has extension-management privileges, the attacker can install malicious plugins and execute arbitrary PHP code on the underlying OS with the privileges of the Shopware process.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Description from the CNA

Shopware version 6.7 allows the upload of attacker‑controlled HTML files and serves them as text/html without effective security headers, enabling stored cross-site scripting (XSS). When a malicious uploaded file containing an embedded JavaScript payload is viewed by an administrator, the attacker can access and exfiltrate the administrator's authentication token. The compromised token enables unauthorized access to the Shopware Administration API. If the affected administrator account possesses extension‑management privileges, an attacker can upload, install, and activate malicious plugins to achieve arbitrary PHP code execution on the underlying OS with the privileges of the Shopware process.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00593 48th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
shopwareShopware6.7—No fix listedCNA
  • Shopware Vendorshopware Affected 6.7 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:shopware:shopware:*:*:*:*:*:*:*:*——shopware
  • cpe:2.3:a:shopware:shopware:*:*:*:*:*:*:*:* Versions — — ·shopware

Remediation

The sources list no fixed version for Shopware.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-104937
  2. 2026-10-13 Alias added: GHSA-pfh5-g6h6-v95h
  3. 2026-10-20 CVSS score added · CISA ADP
  4. 2026-10-20 Weakness changed · CISA ADP
  5. 2026-10-20 CISA SSVC decision points changed
  6. 2026-10-20 Priority changed: LOW → MEDIUM

References

Other 1

  • TI-2023-01895 Improper Control of Generation of Code in Twig Rendered Views in Shopware CVSS 3.1HIGH 8.8
  • TI-2025-20623 Shopware prior to version 6.5.8.13 is affected by a SQL injection vulnerability in the… CVSS 3.1MEDIUM 6.8
  • TI-2024-28343 Shopware vulnerable to Server Side Template Injection in Twig using Context functions CVSS 3.1HIGH 8.3
  • TI-2019-09582 In createInstanceFromNamedArguments in Shopware through 5.6.x, a crafted web request can… CVSS 3.1HIGH 8.8
  • TI-2016-02607 The backend/Login/load/ script in Shopware before 5.1.5 allows remote attackers to execute arbitrary code. CVSS 3.0CRITICAL 9.8
  • TI-2025-32365 A stored cross-site scripting (XSS) vulnerability exists in the Shopware 6 installation… CVSS 3.1MEDIUM 6.1
See all 79 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences