CVE-2021-47723
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Vulnerability report for CVE-2021-47723, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2025-12-09

Last updated on: 2026-02-17

Assigner: VulnCheck

Description

STVS ProVision 5.9.10 contains a cross-site request forgery vulnerability that allows attackers to perform actions with administrative privileges by exploiting unvalidated HTTP requests. Attackers can visit malicious web sites to trigger the forge request, allowing them to create new admin users.

CVSS Scores

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Meta Information

Published
2025-12-09
Last Modified
2026-02-17
Generated
2026-07-06
AI Q&A
2025-12-09
EPSS Evaluated
2026-07-05
NVD

Affected Vendors & Products

Showing 9 associated CPEs
Vendor Product Version / Range
stvs provision 5.5
stvs provision 5.6
stvs provision 5.7
stvs provision 5.8.6
stvs provision 5.9.0
stvs provision 5.9.1
stvs provision 5.9.10
stvs provision 5.9.7
stvs provision 5.9.9

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-352 The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

Attack-Flow Graph

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Executive Summary

This vulnerability is a cross-site request forgery (CSRF) in STVS ProVision 5.9.10 that allows attackers to perform actions with administrative privileges by exploiting unvalidated HTTP requests. An attacker can trick an administrator into visiting a malicious website, which then sends forged requests to the vulnerable system, enabling the attacker to create new admin users without authorization.

Impact Analysis

The vulnerability can allow attackers to gain administrative access to the affected system by creating new admin users without permission. This can lead to unauthorized control over the system, potential data breaches, and further exploitation of the system's resources.

Detection Guidance

Detection can involve monitoring HTTP requests to the STVS ProVision web interface for suspicious POST requests to the /users/create endpoint that attempt to add new admin users without proper authorization. Since the vulnerability involves CSRF attacks exploiting unvalidated HTTP requests, inspecting web server logs for unexpected POST requests creating admin accounts may help. Specific commands are not provided in the resources. [2, 4]

Mitigation Strategies

Immediate mitigation steps include restricting access to the STVS ProVision web interface to trusted users only, educating users to avoid visiting untrusted or malicious websites while authenticated, and applying any available patches or updates from the vendor. Since the vulnerability arises from lack of CSRF protections, implementing CSRF tokens or other request validation mechanisms is recommended if possible. No vendor response or patch was noted as of the advisory dates. [3, 4]

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