CVE-2026-30878

| EUVD-2026-17261 MEDIUM
2026-03-31 GitHub_M GHSA-8cr7-r8qw-gp3c
5.3
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Lifecycle Timeline

4
Patch Released
Apr 01, 2026 - 02:30 nvd
Patch available
EUVD ID Assigned
Mar 31, 2026 - 01:00 euvd
EUVD-2026-17261
Analysis Generated
Mar 31, 2026 - 01:00 vuln.today
CVE Published
Mar 31, 2026 - 00:45 nvd
MEDIUM 5.3

Tags

Authentication Bypass

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.

Analysis

baserCMS versions prior to 5.2.3 allow unauthenticated remote attackers to bypass administrative form submission controls via a public mail API, enabling arbitrary form submissions even when the form is configured to reject new entries. This authentication bypass has a CVSS score of 5.3 and permits attackers to inject spam or abuse content without authorization, circumventing intended intake restrictions. …

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Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +26
POC: 0

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CVE-2026-30878 vulnerability details – vuln.today
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