Input validation error in Shopware - CVE-2023-22734
Published: January 17, 2023 / Updated: May 19, 2026
Vulnerability identifier: #VU131888
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-22734
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass newsletter double opt-in validation.
The vulnerability exists due to improper input validation in the newsletter subscription option validation when processing newsletter subscription requests. A remote attacker can submit a specially crafted subscription request to bypass newsletter double opt-in validation.
Affected software
Shopware
How to mitigate CVE-2023-22734
Install security update from vendor's website.
Shopware - update to 6.4.18.1