CVE-2026-30878baserCMS: Mail Form Acceptance Bypass via Public API

Description

baserCMS is a website development framework. Prior to version 5.2.3, a public mail submission API allows unauthenticated users to submit mail form entries even when the corresponding form is not accepting submissions. This bypasses administrative controls intended to stop form intake and enables spam or abuse via the API. This issue has been patched in version 5.2.3.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://github.com/baserproject/basercms/security/advisories/GHSA-8cr7-r8qw-gp3c ExploitVendor Advisory
• https://basercms.net/security/JVN_20837860 Vendor Advisory
• https://github.com/baserproject/basercms/releases/tag/5.2.3 Release Notes