CVE-2026-112784

medium

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.

References

https://www.vulncheck.com/advisories/opencats-before-0.10.0-missing-authorization-via-ajax-testemailsettings-php

https://github.com/opencats/OpenCATS/releases/tag/v0.10.0

https://github.com/opencats/OpenCATS/issues/720

https://github.com/opencats/OpenCATS/commit/aa3b414c3672f5010ca26c44192aa8e72d3735bd

https://github.com/opencats/OpenCATS/blob/5781f41814f09493c7ce05b9251b5e09c1aff0cd/ajax/testEmailSettings.php

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-104916

Details

Source: Mitre, NVD

Published: 2026-10-20

Updated: 2026-10-20

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 4.3

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Severity: Medium

CVSS v4

Base 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

Severity: Medium

EPSS

EPSS: 0.00245