PT-2026-29149 · Basercms · Basercms

Melonattacker · Published 2026-03-31 · Updated 2026-03-31 · CVE-2026-30878

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions baserCMS versions prior to 5.2.3

Description baserCMS is a website development framework. A publicly accessible mail submission API allows unauthenticated users to submit mail form entries, even when the corresponding form is configured to not accept submissions. This circumvents administrative controls designed to prevent form submissions and could enable spam or abuse through the API. The vulnerable API endpoint is a mail submission form.

Recommendations Update to version 5.2.3 or later.

Exploit

Fix

Improper Authorization

Weakness Enumeration

CWE-285

Related Identifiers

CVE-2026-30878

GHSA-8CR7-R8QW-GP3C

Affected Products

Basercms

References · 11

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30878.json · Exploit
• 🔥 https://github.com/baserproject/basercms/security/advisories/GHSA-8cr7-r8qw-gp3c · Exploit
• https://basercms.net/security/JVN_20837860 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-30878 · Security Note
• https://osv.dev/vulnerability/GHSA-8cr7-r8qw-gp3c · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-30878 · Vendor Advisory
• https://github.com/baserproject/basercms/releases/tag/5.2.3 · Note
• https://github.com/baserproject/basercms · Note
• https://twitter.com/CVEnew/status/2038916055666733341 · Twitter Post
• https://twitter.com/CVEarity/status/2038900886458737087 · Twitter Post
• https://twitter.com/cyberbivash/status/2038835968979955812 · Twitter Post