What is CVE-2021-35059?

CVE-2021-35059 is a medium-severity vulnerability in Openwaygroup Way4, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-10-11.

How severe is CVE-2021-35059?

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

XSS in Openwaygroup Way4

CVE-2021-35059

OpenWay WAY4 ACS before 1.2.278-2693 allows XSS via the /way4acs/enroll action parameter.

Vulnerability class: XSS (Cross-Site Scripting)

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

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (46.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Openwaygroup Way4

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.openwaygroup.com/way4-platform (Product, Vendor Advisory)
gist.github.com/exviry/560fededd1e44b7cced483d8ca8c362e (Third Party Advisory)

Frequently asked questions

What is CVE-2021-35059?: CVE-2021-35059 is a medium-severity vulnerability in Openwaygroup Way4, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-10-11.
How severe is CVE-2021-35059?: Medium severity. CVSS v3 base score is 6.1 out of 10.