What is CVE-2017-6213?

CVE-2017-6213 is a medium-severity vulnerability in Paypal PHP Invoice Sdk, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-08-02.

How severe is CVE-2017-6213?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Paypal PHP Invoice Sdk

CVE-2017-6213

paypal/invoice-sdk-php is vulnerable to reflected XSS in samples/permissions.php via the permToken parameter, resulting in code execution.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-08-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Paypal PHP Invoice Sdk

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/paypal/invoice-sdk-php/issues/13 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2017-6213?: CVE-2017-6213 is a medium-severity vulnerability in Paypal PHP Invoice Sdk, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-08-02.
How severe is CVE-2017-6213?: Medium severity. CVSS v3 base score is 5.4 out of 10.