CVE-2026-21861
1 advisory.
Packagist/baserproject/basercms CVE-2026-21861: critical 9.1, EPSS 2.28%
baserCMS has OS Command Injection Leading to Remote Code Execution (RCE)
Action: Upgrade baserproject/basercms to 5.2.3 or later.
composer require baserproject/basercms:5.2.3Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 5.2.3 | - |
Fixed versions
| 5.2.3 |
Sources
- osv: GHSA-qxmc-6f24-g86g
- https://github.com/baserproject/basercms/security/advisories/GHSA-qxmc-6f24-g86g
- https://nvd.nist.gov/vuln/detail/CVE-2026-21861
- https://basercms.net/security/JVN_20837860
- https://github.com/baserproject/basercms
- https://github.com/baserproject/basercms/releases/tag/5.2.3
CVE-2026-21861 · published · modified · JSON