a466350665 Smart-SSO up to 2.1.1 Login login.html redirectUri cross site scripting
Summary
A vulnerability described as problematic has been identified in a466350665 Smart-SSO up to 2.1.1. This affects an unknown part of the file smart-sso-server/src/main/resources/templates/login.html of the component Login. Executing a manipulation of the argument redirectUri can lead to cross site scripting. This vulnerability appears as CVE-2026-2971. The attack may be performed from remote. In addition, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.
Details
A vulnerability classified as problematic was found in a466350665 Smart-SSO up to 2.1.1. This vulnerability affects an unknown code block of the file smart-sso-server/src/main/resources/templates/login.html of the component Login. The manipulation of the argument redirectUri with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity.
The advisory is available at notion.so. This vulnerability was named CVE-2026-2971. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details and also a public exploit are known. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.
It is possible to download the exploit at notion.so. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. By approaching the search of inurl:smart-sso-server/src/main/resources/templates/login.html it is possible to find vulnerable targets with Google Hacking.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 4.9VulDB Meta Temp Score: 4.8
VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 6.1
NVD Vector: 🔒
CNA Base Score: 4.3
CNA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Cross site scriptingCWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Google Hack: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
02/22/2026 Advisory disclosed02/22/2026 VulDB entry created
02/27/2026 VulDB entry last update
Sources
Advisory: notion.soStatus: Not defined
CVE: CVE-2026-2971 (🔒)
GCVE (CVE): GCVE-0-2026-2971
GCVE (VulDB): GCVE-100-347338
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 02/22/2026 09:21Updated: 02/27/2026 16:11
Changes: 02/22/2026 09:21 (57), 02/23/2026 07:16 (30), 02/27/2026 16:11 (12)
Complete: 🔍
Submitter: din4
Cache ID: 216::103
Submit
Accepted
- Submit #756025: a466350665 Smart-SSO <=2.1.1 Reflected XSS (by din4)
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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