CVE-2026-6404Network attack vector

Administrator-level stored XSS via unescaped API key

Published May 20, 2026 · Updated May 20, 2026

Stored XSS in Anomify AI – Anomaly Detection and Alerting 0.3.6 and earlier allows remote authenticated users to execute scripts. The settings handler stores anomify_api_key after sanitize_text_field(), then admin_options.php echoes it into a value attribute without esc_attr(). Administrator-level access is required to store the payload, which runs in the browser of any user who opens the plugin settings page.

CVSS severity4.4
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Anomify AI – Anomaly Detection and Alerting 0.3.6 and earlier allows remote authenticated users to execute scripts. The settings handler stores anomify_api_key after sanitize_text_field(), then admin_options.php echoes it into a value attribute without esc_attr(). Administrator-level access is required to store the payload, which runs in the browser of any user who opens the plugin settings page.

The record

CVE
CVE-2026-6404
Published
May 20, 2026
Updated
May 20, 2026
Vendor
Anomify
Product
Anomify AI - Anomaly Detection and Alerting
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 20, 2026CVE publishedPublication date reported by the CVE source.
  2. May 20, 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=0 <=0.3.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Anomify · Anomify AI - Anomaly Detection and Alertingversion=0 <=0.3.6

Published CVSS scores

4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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