In Shuup, versions 1.6.0 through 2.10.8 are vulnerable to reflected Cross-Site Scripting (XSS) that allows execution of arbitrary javascript code on a victim browser. This vulnerability exists due to the error page contents not escaped.
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25963
https://github.com/shuup/shuup/commit/75714c37e32796eb7cbb0d977af5bcaa26573588
Source: Mitre, NVD
Published: 2021-09-30
Updated: 2026-06-17
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 6.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS: 0.00376