CVE-2026-2971 a466350665 Smart-SSO Login login.html cross site scripting
Remote attackers can execute arbitrary scripts via the redirectUri parameter in the Smart-SSO login page, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-2971?
CVE-2026-2971 is a medium-severity cross-site scripting vulnerability in a466350665 Smart-SSO, published on 23 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Which versions are affected by CVE-2026-2971?
It affects 1 product.
Products include A466350665 Smart-Sso.
How do I fix CVE-2026-2971?
No fix has been published for CVE-2026-2971 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-2971 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2971 exists.
Other vulnerabilities in a466350665 Smart-SSO
Sources
Also known as GHSA-333w-78wm-wpxh.