Home/CVE/baserCMS is a website development framework. Prior to version 5.2.3, a public mail submission API allows unauthenticated
CVE

CVE-2026-30878

baserCMS is a website development framework. Prior to version 5.2.3, a public mail submission API allows unauthenticated

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.

MEDIUM · CVSS 5.3 EPSS 0.0002
Schedule remediation
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-285Improper Authorization
▤

Affected Products & Versions

1
basercms< 5.2.3
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Packagist baserproject/basercms MEDIUM fixed in 5.2.3
⚠

Public Exploits & PoCs

1
pocgithub.com · GHSA-8cr7-r8qw-gp3cgithub.com
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD31 Mar 2026 · 01:16 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://basercms.net/security/JVN_20837860Vendor Advisory
https://github.com/baserproject/basercms/releases/tag/5.2.3Release Notes
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