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Vulnerabilities

Vulnerability · CVE-2025-66113

Missing Authorization vulnerability in ThemeAtelier Better Chat Support for Messenger better-chat-support allows Exploiting Incorrectly Configured Access Control Security Levels.Th

Published Nov 21, 2025 · catalog updated Apr 28, 2026 · ThemeAtelier Better Chat Support for Messenger

Last checked Nov 7, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-66113. EPSS is 0.22%. Act only if a listed version of ThemeAtelier Better Chat Support for Messenger is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.22%
Remediation
Advisory link
Affected products
vendor ThemeAtelier Better Chat Support for Messenger 0 ≤1.2.18

Missing Authorization vulnerability in ThemeAtelier Better Chat Support for Messenger better-chat-support allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Better Chat Support for Messenger: from n/a through <= 1.2.18.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor ThemeAtelier Better Chat Support for Messenger 0 ≤1.2.180 ≤1.2.18

How to fix CVE-2025-66113

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-66113. EPSS is 0.22%. Act only if a listed version of ThemeAtelier Better Chat Support for Messenger is installed.

Which versions are affected?

Compare what you have installed with ThemeAtelier Better Chat Support for Messenger 0 ≤1.2.18 0 ≤1.2.18. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.22%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 21, 2025 · EUVD

    Detected

    Missing Authorization vulnerability in ThemeAtelier Better Chat Support for Messenger better-chat-support allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Better Chat Support for Messenger: from n/a through <= 1.2.18.

  2. Apr 28, 2026 · EUVD

    Updated

    Missing Authorization vulnerability in ThemeAtelier Better Chat Support for Messenger better-chat-support allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Better Chat Support for Messenger: from n/a through <= 1.2.18.

Sources

  • CVE.orgVulnerability recordCVE-2025-66113

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-66113

    30-day exploitation probability 0.22%

    first.org
  • EUVDVulnerability recordEUVD-2025-198441

    Missing Authorization vulnerability in ThemeAtelier Better Chat Support for Messenger better-chat-support allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Better Chat Support for Messenger: from n/a through <= 1.2.18.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 7, 2026
  • CVE.orgOct 26, 2026
  • EUVDOct 26, 2026