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CVE-2026-30878

baserCMS: Mail Form Acceptance Bypass via Public API

Published: Mar 31, 2026Updated: Apr 1, 2026 Sources: CVE List NVDCWE-285
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.4%
Top 70.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-285

Affected Products

basercmsbasercms
On-premWeb App
Web & CMS Plugins / cms-core
basercmsbaserproject
On-prem
Web & CMS Plugins / cms-core
basercmscommercialWeb & CMS Plugins
baserprojectoss-projectWeb & CMS Pluginsaka basercms

Exploitability

Official Patch Available

References

https://basercms.net/security/JVN_20837860
basercms.net
https://github.com/baserproject/basercms/releases/tag/5.2.3
github.com
https://github.com/baserproject/basercms/security/advisories/GHSA-8cr7-r8qw-gp3c
github.com

Timeline

Published
Mar 31, 2026
Last Updated
Apr 1, 2026

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