CVE-2025-55795Public exploitNetwork attack vector

Account lockout via unverified email reassignment

Published Sep 29, 2025 · Updated Sep 29, 2025

Improper access control in OpenML openml.org 2.0.20241110 and earlier allows remote authenticated users to lock out other users. The /profile email update accepts another account's existing email without ownership verification, reassigning the address and invalidating victim access. A lower-ID account and the victim's email address are required; the attack blocks login without exposing the victim's private data.

CVSS severity3.5
Low
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper access control in OpenML openml.org 2.0.20241110 and earlier allows remote authenticated users to lock out other users. The /profile email update accepts another account's existing email without ownership verification, reassigning the address and invalidating victim access. A lower-ID account and the victim's email address are required; the attack blocks login without exposing the victim's private data.

The record

CVE
CVE-2025-55795
Published
Sep 29, 2025
Updated
Sep 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, CWE-639, T1531
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.5CISA-ADPCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-639Authorization Bypass Through User-Controlled Key
T1531Account Access Removal

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo