What is CVE-2017-17956?

CVE-2017-17956 is a medium-severity vulnerability in PHP Multivendor Ecommerce Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-12-28.

How severe is CVE-2017-17956?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in PHP Multivendor Ecommerce Project

CVE-2017-17956

PHP Scripts Mall PHP Multivendor Ecommerce has XSS via the admin/sellerupd.php companyname parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-12-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (50.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

PHP Multivendor Ecommerce Project

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/d4wner/Vulnerabilities-Report/blob/master/PHP Multivendor Ecommerce… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2017-17956?: CVE-2017-17956 is a medium-severity vulnerability in PHP Multivendor Ecommerce Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-12-28.
How severe is CVE-2017-17956?: Medium severity. CVSS v3 base score is 6.1 out of 10.