MEDIUM
GHSA-jmq3-x8q7-j9qm
baserCMS has a cross-site scripting vulnerability in blog posts
Quick fix
GHSA-jmq3-x8q7-j9qm — baserproject/basercms: upgrade to the fixed version with the command below.
composer require baserproject/basercms:^5.2.3Details
baserCMS has a cross-site scripting vulnerability in blog posts.
### Target baserCMS 5.2.1 and earlier versions
### Vulnerability
Malicious Javascript may be executed in blog posts.
### Countermeasures Update to the latest version of baserCMS
Please refer to the following page to reference for more information. https://basercms.net/security/JVN_20837860
### Credits
Gai Tanaka@Mitsui Bussan Secure Directions, Inc.
Are you affected?
Enter the version of the package you're using.
Affected packages
Packagist/baserproject/basercms
Introduced in:
0Fixed in: 5.2.3Fix
composer require baserproject/basercms:^5.2.3References
- https://github.com/baserproject/basercms/security/advisories/GHSA-jmq3-x8q7-j9qm[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2026-30879[ADVISORY]
- https://basercms.net/security/JVN_20837860[WEB]
- https://github.com/baserproject/basercms[PACKAGE]
- https://github.com/baserproject/basercms/releases/tag/5.2.3[WEB]