CVE-2026-115481 (GCVE-0-2026-115481)
Vulnerability from cvelistv5 – Published: 2026-10-23 13:34 – Updated: 2026-10-23 14:58
VLAI
EPSS
VEX
Title
baserCMS: BcCustomContent file fields can be configured to allow executable file extensions such as php, leading to arbitrary PHP file upload
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-23 14:54 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/baserproject/basercms/security… | x_refsource_CONFIRM |
| https://github.com/baserproject/basercms/commit/2… | x_refsource_MISC |
| https://github.com/baserproject/basercms/commit/b… | x_refsource_MISC |
| https://github.com/baserproject/basercms/releases… | x_refsource_MISC |
| https://github.com/baserproject/basercms/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| baserproject | basercms |
Affected:
>= 5.0.0-beta1, < 5.3.2
Affected: >= 5.4.0, < 5.4.2 |
guessed |
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