CVE-2021-35059: OpenWay WAY4 ACS before 1.2.278-2693 allows XSS via the /way4acs/enroll action parameter.

Q: How do I fix CVE-2021-35059?

way4: upgrade to 1.2.278-2693. Exact commands for each OS are on this page.

Q: Is CVE-2021-35059 being exploited?

CVE-2021-35059 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-35059 affect?

CVE-2021-35059 affects way4. Severity is medium (CVSS 6.1). OpenWay WAY4 ACS before 1.2.278-2693 allows XSS via the /way4acs/enroll action parameter.

Q: How urgent is CVE-2021-35059?

Priority 33/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2021-35059 is a medium-severity flaw (CVSS 6.1) affecting way4. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-10-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: openwaygroup

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-10-11 09:15 UTCPublished CVE record published
2026-06-17 03:57 UTCUpdated Record last modified

openwaygroup way4 UPGRADE

Affected: < 1.2.278-2693

Fixed in: 1.2.278-2693

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy way4 || rpm -q way4 || way4 --version

2. UPGRADE to 1.2.278-2693 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade way4

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade way4

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-35059?

way4: upgrade to 1.2.278-2693. Exact commands for each OS are on this page.

Is CVE-2021-35059 being exploited?

CVE-2021-35059 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-35059 affect?

CVE-2021-35059 affects way4. Severity is medium (CVSS 6.1). OpenWay WAY4 ACS before 1.2.278-2693 allows XSS via the /way4acs/enroll action parameter.

How urgent is CVE-2021-35059?

Priority 33/100. No elevated risk signals yet.

Related CVEs

CVE-2021-35060 MEDIUM 5.3 UPGRADE /way4acs/enroll in OpenWay WAY4 ACS before 1.2.278-2693 allows unauthenticated attackers to leverage response

References

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