CVE-2025-54599

high

Description

The Bevy Event service through 2025-07-22, as used for eBay Seller Events and other activities, allows account takeover, if SSO is used, when a victim changes the email address that they have configured. To exploit this, an attacker would create their own account and perform an SSO login. The root cause of the issue is SSO misconfiguration.

References

https://www.youtube.com/watch?v=wbmIvA09Ra8

https://gist.github.com/deep1chil/558e8da919690a634bec684e7c4d0ffe

https://bevy.com/b/events-and-groups

Details

Source: Mitre, NVD

Published: 2025-09-02

Updated: 2025-09-04

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity: High

EPSS

EPSS: 0.00029