CVE-2026-28571
Received Received - Intake

Unauthenticated Broken Access Control in FormyChat

Publication date: 2026-08-18

Last updated on: 2026-08-18

Assigner: Patchstack

Description
Unauthenticated Broken Access Control in FormyChat <= 2.15.7 versions.

CVSS Scores

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Probability:
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Meta Information

Published
2026-08-18
Last Modified
2026-08-18
Generated
2026-08-18
AI Q&A
2026-08-18
EPSS Evaluated
N/A
NVD
CVE-2026-28571
EUVD
EUVD-2026-60896

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
patchstack formychat to 2.15.7 (inc)
formychat formychat to 2.15.7 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

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Executive Summary

This vulnerability is an Unauthenticated Broken Access Control in the FormyChat WordPress plugin versions 2.15.7 and below. It allows unauthenticated attackers to perform privileged actions due to missing authorization, authentication, or nonce token checks. The flaw has a CVSS score of 7.5, indicating high severity.

Detection Guidance

Check if the FormyChat plugin version 2.15.7 or below is installed on your WordPress site. Look for unauthorized privileged actions or unusual activity in logs. Use security plugins to monitor for broken access control attempts.

Impact Analysis

Unauthenticated attackers could exploit this to perform privileged actions on affected websites. This may lead to unauthorized data access, modification, or other malicious activities. The vulnerability is actively dangerous and may be used in mass campaigns targeting many websites.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate compliance requirements under GDPR, HIPAA, or other regulations. Unauthorized data exposure or modification could result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Apply the Patchstack mitigation rule if available. Disable the FormyChat plugin temporarily until an official patch is released. Contact your hosting provider or developer for assistance.

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