medium5.3
CVE-2026-30878
baserCMS has Mail Form Acceptance Bypass via Public API
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | baserproject/basercms | <= 5.2.2 | 5.2.3 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Basercms | Basercms | before 5.2.3 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-8cr7-r8qw-gp3c
- https://github.com/baserproject/basercms/security/advisories/GHSA-8cr7-r8qw-gp3c
- https://nvd.nist.gov/vuln/detail/CVE-2026-30878
- https://basercms.net/security/JVN_20837860
- https://github.com/baserproject/basercms/releases/tag/5.2.3