CVE-2026-2971

MEDIUM

Smart-SSO < 2.1.1 - Cross-Site Scripting via redirectUri Parameter

Title source: llm

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.

References (4)

Core 4

Core References

Permissions Required, VDB Entry vdb-entry technical-description

https://vuldb.com/?id.347338

Permissions Required, VDB Entry signature permissions-required

https://vuldb.com/?ctiid.347338

Permissions Required, VDB Entry third-party-advisory

https://vuldb.com/?submit.756025

Various Sources exploit

https://www.notion.so/Smart-SSO-Reflected-XSS-vulnerabilities-in-redirectUri-parameter-304ea92a3c41805a8223c4ba75831802

Scores

CVSS v3 4.3

EPSS 0.0031

EPSS Percentile 22.2%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-79 CWE-94

Status published

Products (1)

a466350665/smart-sso < 2.1.1

Published Feb 23, 2026

Tracked Since Feb 23, 2026