XSS in Eshop Project

CVE-2015-3421

The eshop_checkout function in checkout.php in the Wordpress Eshop plugin 6.3.11 and earlier does not validate variables in the "eshopcart" HTTP cookie, which allows remote attackers to perform cross-site scripting (XSS) attacks, or a path disclosure attack via crafted variables named after target PHP variables.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.013 (67.3th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2015-3421?
CVE-2015-3421 is a medium-severity vulnerability in Eshop Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-07-21.
How severe is CVE-2015-3421?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2015-3421 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.