CVE-2021-25991Public exploitNetwork attack vector

Administrator lockout via unrestricted self-banning controls

Published Dec 29, 2021 · Updated Apr 30, 2025

Improper access control in ifme 5.0.0 through 7.32 allows remote authenticated users to deactivate their own administrator accounts. The reporting, profile, search, ally, and comment views expose report or ban paths for administrator accounts and the current account without excluding those targets. An administrator must invoke a self-targeting action; successful use disables that account and eliminates administrative access when it is the only administrator.

CVSS severity5.7
Medium
EPSS probability0.80%
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 ifme 5.0.0 through 7.32 allows remote authenticated users to deactivate their own administrator accounts. The reporting, profile, search, ally, and comment views expose report or ban paths for administrator accounts and the current account without excluding those targets. An administrator must invoke a self-targeting action; successful use disables that account and eliminates administrative access when it is the only administrator.

The record

CVE
CVE-2021-25991
Published
Dec 29, 2021
Updated
Apr 30, 2025
Vendor
if-me
Product
ifme
Classifications
CWE-284, T1531
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 29, 2021CVE publishedPublication date reported by the CVE source.
  2. Apr 30, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <=v7.32
  2. Affected versionversion=v5.0.0 <unspecified

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

if-me · ifmeversion=unspecified <=v7.32; version=v5.0.0 <unspecified

Published CVSS scores

5.7MendCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
4.9NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:P
7.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H

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
T1531Account Access Removal

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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