CVE-2025-54599Public exploitNetwork attack vector

Account takeover via stale SSO email mapping

Published Sep 2, 2025 · Updated Sep 2, 2025

Improper access control in Bevy Event service through 2025-07-22 allows remote attackers to take over SSO-enabled accounts. Bevy matches an SSO login to the email stored in its CMS even after that email diverges from the identity provider record. Exploitation requires SSO, a victim-changed email, and an attacker-created account using that new address; success grants the victim account's access.

CVSS severity7.5
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Bevy Event service through 2025-07-22 allows remote attackers to take over SSO-enabled accounts. Bevy matches an SSO login to the email stored in its CMS even after that email diverges from the identity provider record. Exploitation requires SSO, a victim-changed email, and an attacker-created account using that new address; success grants the victim account's access.

The record

CVE
CVE-2025-54599
Published
Sep 2, 2025
Updated
Sep 2, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 2, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
T1078Valid Accounts

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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