How severe is CVE-2021-35060?

CVE-2021-35060 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-35060 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-35060?

CVE-2021-35060 affects Openwaygroup Way4. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-35060?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-35060 published?

CVE-2021-35060 was published on 2021-10-11 and last updated on 2026-06-17.

CVE-2021-35060

CVE-2021-35060 is a medium-severity vulnerability in Openwaygroup Way4 with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-209.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-209
Affected product: Openwaygroup Way4
Published: 2021-10-11
Last modified: 2026-06-17

Description

/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.

Frequently asked questions

What is 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.
How severe is CVE-2021-35060?: CVE-2021-35060 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-35060 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-35060?: CVE-2021-35060 affects Openwaygroup Way4. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-35060?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-35060 published?: CVE-2021-35060 was published on 2021-10-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openwaygroup:way4:*:*:*:*:*:*:*:*

More vulnerabilities in Openwaygroup Way4

CVE-2021-35059 — Medium (CVSS 6.1): OpenWay WAY4 ACS before 1.2.278-2693 allows XSS via the /way4acs/enroll action parameter.

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