In the api-bearer-auth plugin before 20190907 for WordPress, the server parameter is not correctly filtered in the swagger-config.yaml.php file, and it is possible to inject JavaScript code, aka XSS.
https://wpvulndb.com/vulnerabilities/9868
https://plugins.trac.wordpress.org/changeset/2152730
https://wordpress.org/plugins/api-bearer-auth/#developers
https://packetstormsecurity.com/files/154369/WordPress-API-Bearer-Auth-20181229-Cross-Site-Scripting.html
Source: Mitre, NVD
Published: 2019-09-15
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: 0.05698