CVE-2025-32957 json
baserCMS: unsafe File Upload Leading to Remote Code Execution (RCE)
published 2026-03-31 7 mo ago modified 2026-09-10 1 mo ago also EUVD-2025-209130 , GHSA-hv78-cwp4-8r7r
- cvss
- 8.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
baserCMS is a website development framework. Prior to version 5.2.3, the application's restore function allows users to upload a .zip file, which is then automatically extracted. A PHP file inside the archive is included using require_once without validating or restricting the filename. An attacker can craft a malicious PHP file within the zip and achieve arbitrary code execution when it is included. This issue has been patched in version 5.2.3.
Patch / fix
- packagist baserproject/basercms 5.2.3
- basercms basercms 5.2.3
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/baserproject/basercms/security/advisories/GHSA-hv78-cwp4-8r7r referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N |
| GitHub | 3.1 | 8.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N |
| NVD | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | baserproject/basercms | <5.2.3 |
5.2.3 |
Affected products
- baserproject basercms
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
-
github.com
/baserproject/basercms/security/advisories/GHSA-hv78-cwp4-8r7r
exploit, web, vendor-advisory
-
basercms.net
/security/JVN_20837860
web, vendor-advisory
-
github.com
/baserproject/basercms/releases/tag/5.2.3
web, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2025-32957
advisory
-
github.com
/baserproject/basercms
package
Sources
- CVE List CVE-2025-32957
- GitHub Advisory GHSA-hv78-cwp4-8r7r
- NVD CVE-2025-32957
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.