How severe is CVE-2026-2971?

CVE-2026-2971 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-2971 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-2971?

CVE-2026-2971 affects A466350665 Smart-sso. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-2971?

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

Does CVE-2026-2971 have an EU (EUVD) identifier?

Yes. CVE-2026-2971 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7596.

When was CVE-2026-2971 published?

CVE-2026-2971 was published on 2026-02-23 and last updated on 2026-06-17.

CVE-2026-2971

CVE-2026-2971 is a medium-severity vulnerability in A466350665 Smart-sso with a CVSS 3.x base score of 4.3. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 5.0
CVSS v4: 2.1
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7596
Weakness: CWE-79
Affected product: A466350665 Smart-sso
Published: 2026-02-23
Last modified: 2026-06-17

Description

A vulnerability was found in a466350665 Smart-SSO up to 2.1.1. Affected by this issue is some unknown functionality of the file smart-sso-server/src/main/resources/templates/login.html of the component Login. Performing a manipulation of the argument redirectUri results in cross site scripting. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-2971?: A vulnerability was found in a466350665 Smart-SSO up to 2.1.1. Affected by this issue is some unknown functionality of the file smart-sso-server/src/main/resources/templates/login.html of the component Login. Performing a manipulation of the argument redirectUri results in cross site scripting. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-2971?: CVE-2026-2971 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-2971 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-2971?: CVE-2026-2971 affects A466350665 Smart-sso. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-2971?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-2971 have an EU (EUVD) identifier?: Yes. CVE-2026-2971 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7596.
When was CVE-2026-2971 published?: CVE-2026-2971 was published on 2026-02-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:a466350665:smart-sso:*:*:*:*:*:*:*:*

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