CVE-2025-6261 is a stored cross-site scripting vulnerability in the Fleetwire Fleet Management plugin for WordPress, affecting all versions up to and including 1.0.19. The issue stems from improper neutralization of input during web page generation, specifically in the fleetwire_list shortcode, where user-supplied attributes are not properly sanitized or escaped. Authenticated attackers with contributor-level permissions or higher can exploit this to inject arbitrary JavaScript that executes in the context of users viewing the injected pages. This can lead to partial confidentiality and integrity impacts but does not affect availability. The CVSS 3.1 vector indicates network attack vector, low attack complexity, privileges required at the contributor level, no user interaction, and scope changed.

Successful exploitation allows an authenticated contributor or higher to inject persistent malicious scripts into pages rendered by the plugin. This can lead to partial compromise of confidentiality and integrity for users viewing the affected pages, such as theft of session tokens or manipulation of page content. There is no impact on availability. No known exploits in the wild have been reported to date.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access to trusted users only and consider disabling or removing the Fleetwire Fleet Management plugin if possible. Monitor for plugin updates from the vendor addressing this vulnerability.