CVE-2025-55795

LOW
INFO Priority: 0.01 BB Relevance: 47/100
Published: 2025-09-29 Modified: 2026-11-07 First seen: 2026-11-07 Status: active

Attack Surface

Network No Interaction Scope Change

CVSS Vector Breakdown

AV: Network
AC: High
PR: Low
UI: None
S: Changed
C: None
I: Low
A: None

Description

The openml/openml.org web application version v2.0.20241110 uses incremental user IDs and insufficient email ownership verification during email update workflows. An authenticated attacker controlling a user account with a lower user ID can update their email address to that of another user with a higher user ID without proper verification. This results in the victim's email being reassigned to the attacker's account, causing the victim to be locked out immediately and unable to log in. The vulnerability leads to denial of service via account lockout but does not grant the attacker direct access to the victim's private data.

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
openml openml_frontend < 2.0.20251111

Bug Bounty Relevance

47 / 100
✓ Network accessible
✓ No user interaction

CVSS Score

3.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N

EPSS — Exploitation Probability

0.31%
Raw Score 0.003080
Percentile 24.0%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00308
2026-11-12
0.00308
2026-11-10
0.00308
2026-11-09
0.00308
2026-11-08
0.00308
2026-11-07
0.00308

Intelligence Sources

nvd ref →