Welcart e-Commerce: Cross-site scripting
Welcart e-Commerce is affected by cross-site scripting. Exploitation requires an authenticated editor account. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
- Component
- Welcart e-Commerce
- Plugin slug
usc-e-shop- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Sep 10, 2025
This CVE was published Sep 10, 2025 and is one of 18 known issues for this plugin.
Update, patch or deactivate.
No fixed release is identified. Update Welcart e-Commerce when a confirmed fixed release becomes available; until then, disable and remove it when the site's risk warrants.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Welcart e-Commerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via settings in all versions up to, and including, 2.11.20 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N