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MEDIUM severity

CVE-2023-51450 — basercms

MEDIUMFix: baserproject/basercms@18f426d

CVE-2023-51450 is a medium-severity (CVSS 5.6) OS Command Injection vulnerability in baserproject/basercms. A fix is available for baserproject/basercms — see the affected versions and patch details below.

baserCMS OS command injection vulnerability in Installer

Also known asGHSA-77fc-4cv5-hmfr
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-51450.

EPSS Exploitation Probability

via FIRST.org ↗
1.5%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs74th percentile — riskier than 74% of all scored CVEsHighest risk
0.26%0.82%1.39%1.96%0.8%1.5%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘baserproject/basercms

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

There is a OS command injection in Installer Feature to baserCMS.

Target

baserCMS 5.0.8 and earlier versions

Vulnerability

Malicious command may be executed in Installer.

Countermeasures

Update to the latest version of baserCMS

Please refer to the following page to reference for more information. https://basercms.net/security/JVN_73283159

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistbaserproject/basercmsall versions5.0.9composer require baserproject/basercms:^5.0.9

Affected Products

1 product · 1 configurations
Application
basercmsbasercms
< 5.0.9
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for baserproject/basercms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update baserproject/basercms to 5.0.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-51450 is resolved across your whole dependency graph.

  3. Workarounds

    Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.

Frequently Asked Questions

There is a OS command injection in Installer Feature to baserCMS. ### Target baserCMS 5.0.8 and earlier versions ### Vulnerability Malicious command may be executed in Installer. ### Countermeasures Update to the latest version of baserCMS Please refer to the following page to reference for more information. https://basercms.net/security/JVN_73283159
O3 Security · Impact-Aware SCA

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CVE-2023-51450: basercms — Fixed in 5.0.9