CVE-2026-30878 — Improper Authorization in Basercms

CWE-285 — Improper Authorization4 documents4 sources
Severity
5.3MEDIUMNVD
EPSS
0.0%
top 88.12%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Baserproject BasercmsBasercms
Timeline
PublishedMar 31

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages3 packages

▶NVDbasercms/basercms< 5.2.3
▶CVEListV5baserproject/basercms< 5.2.3
▶Packagistbaserproject/basercms< 5.2.3

🔴Vulnerability Details

2
GHSA
baserCMS has Mail Form Acceptance Bypass via Public API↗2026-03-31
▶
OSV
baserCMS has Mail Form Acceptance Bypass via Public API↗2026-03-31
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🕵️Threat Intelligence

1
Wiz
CVE-2026-30878 Impact, Exploitability, and Mitigation Steps | Wiz↗
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