CVE-2026-25019Public exploitNetwork attack vector

Unauthenticated settings changes via unchecked AJAX handler

Published Feb 3, 2026 · Updated Feb 3, 2026

Missing authorization in Atarim 4.3.1 and earlier allows remote attackers to modify plugin settings through its WordPress AJAX handler. The avc_save_avc_settings function registers an unauthenticated action and writes allowed settings after nonce validation without checking login state or administrative capability. Exploitation requires an active plugin and a frontend-exposed nonce; successful requests can alter role-access and developer settings.

CVSS severity5.3
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Atarim 4.3.1 and earlier allows remote attackers to modify plugin settings through its WordPress AJAX handler. The avc_save_avc_settings function registers an unauthenticated action and writes allowed settings after nonce validation without checking login state or administrative capability. Exploitation requires an active plugin and a frontend-exposed nonce; successful requests can alter role-access and developer settings.

The record

CVE
CVE-2026-25019
Published
Feb 3, 2026
Updated
Feb 3, 2026
Vendor
Atarim
Product
Atarim
Classifications
CWE-862, CAPEC-180, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=n/a <=<= 4.3.1 changes=[{"at":"4.3.2","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Atarim · Atarimversion=n/a <=<= 4.3.1 changes=[{"at":"4.3.2","status":"unaffected"}]

Published CVSS scores

5.3PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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 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-862Missing Authorization
CAPEC-180Exploiting Incorrectly Configured Access Control Security Levels
T1190Exploit Public-Facing Application

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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