RCE in A466350665 Smart-Sso
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (40.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- A466350665 Smart-Sso — versions 2.1.0, 2.1.1
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- www.notion.so/Smart-SSO-Reflected-XSS-vulnerabilities-in-redirectUri-parameter-… (Exploit, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2026-2971?
- CVE-2026-2971 is a medium-severity vulnerability in A466350665 Smart-Sso, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-02-23.
- How severe is CVE-2026-2971?
- Medium severity. CVSS v3 base score is 4.3 out of 10.