OpenCATS before 0.10.0 contains a missing authorization vulnerability in ajax/testEmailSettings.php that allows any authenticated user to send mail through the configured SMTP relay. Read-level users can supply testEmailAddress and fromAddress parameters to send the fixed test message to any recipient with a spoofed From address.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
opencats OpenCATS unaffected
Version Status Constraints
0 affected < 0.10.0

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Opencats Subscribe
Opencats Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/opencats/OpenCATS/blob/5781f41814f09493c7ce05b9251b5e09c1aff0cd/ajax/testEmailSettings.php cve-icon cve-icon
https://github.com/opencats/OpenCATS/commit/aa3b414c3672f5010ca26c44192aa8e72d3735bd cve-icon cve-icon
https://github.com/opencats/OpenCATS/issues/720 cve-icon cve-icon
https://github.com/opencats/OpenCATS/releases/tag/v0.10.0 cve-icon cve-icon
https://www.vulncheck.com/advisories/opencats-before-0.10.0-missing-authorization-via-ajax-testemailsettings-php cve-icon cve-icon
History

Tue, 20 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 20 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
Description OpenCATS before 0.10.0 contains a missing authorization vulnerability in ajax/testEmailSettings.php that allows any authenticated user to send mail through the configured SMTP relay. Read-level users can supply testEmailAddress and fromAddress parameters to send the fixed test message to any recipient with a spoofed From address.
Title OpenCATS before 0.10.0 Missing Authorization via ajax/testEmailSettings.php
First Time appeared Opencats
Opencats opencats
Weaknesses CWE-862
CPEs cpe:2.3:a:opencats:opencats:*:*:*:*:*:*:*:*
Vendors & Products Opencats
Opencats opencats
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-20T13:27:10.134Z

Reserved: 2026-10-19T18:11:37.874Z

Link: CVE-2026-112784

cve-icon Vulnrichment

Updated: 2026-10-20T13:27:05.271Z

cve-icon NVD

Status : Deferred

Published: 2026-10-20T11:17:18.323

Modified: 2026-10-20T14:16:57.140

Link: CVE-2026-112784

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses