What is CVE-2021-35060?

CVE-2021-35060 is a medium-severity vulnerability in Openwaygroup Way4, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 5.3/10. Published 2021-10-11.

How severe is CVE-2021-35060?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Information disclosure in Openwaygroup Way4

CVE-2021-35060

/way4acs/enroll in OpenWay WAY4 ACS before 1.2.278-2693 allows unauthenticated attackers to leverage response differences to discover whether a specific payment card number is stored in the system.

Published 2021-10-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (56.2th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.2% 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

Openwaygroup Way4

Weakness classification (CWE)

CWE-209 — Generation of Error Message Containing Sensitive Information

References

www.openwaygroup.com/way4-platform (Product, Vendor Advisory)
gist.github.com/exviry/9527ce2ccdc0718d3ffd1e3ca62cf304 (Third Party Advisory)

Frequently asked questions

What is CVE-2021-35060?: CVE-2021-35060 is a medium-severity vulnerability in Openwaygroup Way4, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 5.3/10. Published 2021-10-11.
How severe is CVE-2021-35060?: Medium severity. CVSS v3 base score is 5.3 out of 10.