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CVE-2025-54599

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-09-02 · updated 2026-06-17
• Weakness: CWE-284

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.

Affected products

• Bevy Events And Groups: through 2025-07-22

References

• https://bevy.com/b/events-and-groups
• https://gist.github.com/deep1chil/558e8da919690a634bec684e7c4d0ffe
• https://www.youtube.com/watch?v=wbmIvA09Ra8

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