# OAuth Single Sign On – SSO (OAuth Client) <= 7.1.4 - Authenticated (Administrator+) Stored Cross-Site Scripting via App Name

- **ID:** WPSEC-2026-3126
- **Plugin:** OAuth Single Sign On – SSO (OAuth Client) (`miniorange-login-with-eve-online-google-facebook`), https://wordpress.org/plugins/miniorange-login-with-eve-online-google-facebook/
- **Affected versions:** all versions before 7.1.5
- **Fixed in:** 7.1.5 (Update to 7.1.5 or later.)
- **Severity:** Medium 4.0 (CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N)
- **Weakness:** CWE-79
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-11-14)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/miniorange-login-with-eve-online-google-facebook
- **Fix released:** 2026-11-13
- **Published:** 2026-11-14
- **URL:** https://wpsec.com/vuln/WPSEC-2026-3126/

## Description

The OAuth Single Sign On plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the configured application name in all versions up to, and including, 7.1.4. This is due to insufficient output escaping: the name is placed inside an inline onClick JavaScript handler of the SSO login button using only esc_attr(). This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts that will execute when a user clicks the login button on a page displaying it. This only affects multi-site installations and installations where unfiltered_html has been disabled.

## References

- https://wpsec.com/vuln/WPSEC-2026-3126/
- https://plugins.svn.wordpress.org/miniorange-login-with-eve-online-google-facebook/tags/7.1.5/
- https://wordpress.org/plugins/miniorange-login-with-eve-online-google-facebook/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-3126/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.