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CVE-2026-115481

baserCMS: BcCustomContent file fields can be configured to allow executable file extensions such as php, leading to arbitrary PHP file upload PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
baserproject / basercmsaffected >= 5.0.0-beta1, < 5.3.2; affected >= 5.4.0, < 5.4.2

CWE

CWE-434

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.