OpenCATS up to 0.9.x Email Testing testEmailSettings.php testEmailAddress/fromAddress improper authorization

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k1.34-

Summaryinfo

A vulnerability categorized as problematic has been discovered in OpenCATS up to 0.9.x. Affected by this vulnerability is an unknown functionality of the file ajax/testEmailSettings.php of the component Email Testing. Executing a manipulation of the argument testEmailAddress/fromAddress can lead to improper authorization. This vulnerability is tracked as CVE-2026-112784. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in OpenCATS up to 0.9.x and classified as problematic. This vulnerability affects an unknown functionality of the file ajax/testEmailSettings.php of the component Email Testing. The manipulation of the argument testEmailAddress/fromAddress with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect integrity. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-112784 since 10/19/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1548.002.

By approaching the search of inurl:ajax/testEmailSettings.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 0.10.0 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Google Hack: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: OpenCATS 0.10.0

Timelineinfo

10/19/2026 CVE reserved
10/20/2026 +1 days Advisory disclosed
10/20/2026 +0 days VulDB entry created
10/20/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-112784 (🔒)
GCVE (CVE): GCVE-0-2026-112784
GCVE (VulDB): GCVE-100-422752

Entryinfo

Created: 10/20/2026 13:01
Changes: 10/20/2026 13:01 (77)
Complete: 🔍
Cache ID: 216::103

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