CVE-2026-2971

Name: CVE-2026-2971
Creator: NVD / NIST
Published: 2026-02-23T05:16:20.663+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2.1/10EPSS 0.31%

Last modified Jun 17, 2026

CVE-2026-2971 is a low-severity vulnerability rated 2.1/10 on the CVSS scale. 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. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS 4.0

2.1/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.31%

22.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
A466350665	Smart-Sso	<= 2.1.1

References

https://vuldb.com/?ctiid.347338Permissions Required, VDB Entry
https://vuldb.com/?id.347338Third Party Advisory, VDB Entry
https://vuldb.com/?submit.756025Third Party Advisory, VDB Entry
https://www.notion.so/Smart-SSO-Reflected-XSS-vulnerabilities-in-redirectUri-parameter-304ea92a3c41805a8223c4ba75831802Exploit, Third Party Advisory

Timeline

Published: Feb 23, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-2971?

How severe is CVE-2026-2971?

CVE-2026-2971 has a CVSS score of 2.1/10 (LOW severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.

How do I fix CVE-2026-2971?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-2971?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST