What is CVE-2018-18572?

CVE-2018-18572 is a high-severity vulnerability in Oscommerce, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2019-08-22.

How severe is CVE-2018-18572?

High severity. CVSS v3 base score is 7.2 out of 10.

Is CVE-2018-18572 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Oscommerce

CVE-2018-18572

osCommerce 2.3.4.1 has an incomplete '.htaccess' for blacklist filtering in the "product" page. Because of this filter, script files with certain PHP-related extensions (such as .phtml and .php5) didn't execute in the application. But this filter didn't prevent the '.pht' extension. Thus, remote authenticated administrators can upload '.pht' files for arbitrary PHP code execution via a /catalog/admin/categories.php?cPath=&action=new_product URI.

Vulnerability class: Unrestricted File Upload

EPSS: 0.025 (83.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Oscommerce — versions 2.3.4.1
N/a — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

References

cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2018-18572?: CVE-2018-18572 is a high-severity vulnerability in Oscommerce, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2019-08-22.
How severe is CVE-2018-18572?: High severity. CVSS v3 base score is 7.2 out of 10.
Is CVE-2018-18572 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.