CVE-2026-30879 PUBLISHED

baserCMS: Cross-site scripting vulnerability in blog post

Assigner: GitHub_M
Reserved: 06.03.2026 Published: 31.03.2026 Updated: 31.03.2026

baserCMS is a website development framework. Prior to version 5.2.3, baserCMS has a cross-site scripting vulnerability in blog posts. This issue has been patched in version 5.2.3.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CVSS Score: 6.9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	baserproject
Product	basercms
Versions	Version < 5.2.3 is affected

References

https://github.com/baserproject/basercms/security/advisories/GHSA-jmq3-x8q7-j9qm
https://basercms.net/security/JVN_20837860
https://github.com/baserproject/basercms/releases/tag/5.2.3

Problem Types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE