Vulnerability Description
baserCMS is a website development framework. Starting in version 5.0.0-beta1 and prior to versions 5.3.2 and 5.4.2, `PermissionGroupsService::build()` reads a plugin's `config/permission.php` to decide what each user group may reach. When that file is absent it writes a wildcard allow rule instead: `url` `/baser/<prefix>/<plugin>/*`, `method` `*`, `auth` true, for every non-admin group. BcCustomContent has no such file in any release. After an administrator installs it, the default `operators` group can store and execute arbitrary PHP under the document root. Versions 5.3.2 and 5.4.2 patch the issue.
Related Weaknesses (CWE)
References
- https://github.com/baserproject/basercms/commit/2ed19c878add5c26fc765572e0e77173
- https://github.com/baserproject/basercms/commit/b0ef31b10dc6267b48ebc9a80d34bc7c
- https://github.com/baserproject/basercms/releases/tag/5.3.2
- https://github.com/baserproject/basercms/releases/tag/5.4.2
- https://github.com/baserproject/basercms/security/advisories/GHSA-8jrp-4h7c-m679
FAQ
What is CVE-2026-115481?
CVE-2026-115481 is a documented vulnerability. baserCMS is a website development framework. Starting in version 5.0.0-beta1 and prior to versions 5.3.2 and 5.4.2, `PermissionGroupsService::build()` reads a plugin's `config/permission.php` to decid...
How severe is CVE-2026-115481?
CVSS scoring is not yet available for CVE-2026-115481. Check NVD for updates.
Is there a patch for CVE-2026-115481?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.