Cross-Site Scripting Vulnerability in STVS ProVision by STVS
CVE-2021-47725

4.8MEDIUM

Key Information:

Vendor

Stvs Sa

Status
Stvs Provision
Vendor
CVE Published:
31 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47725?

STVS ProVision version 5.9.10 is susceptible to a cross-site scripting (XSS) vulnerability allowing authenticated attackers to manipulate the 'files' POST parameter. This weakness enables the injection of arbitrary HTML code, resulting in the execution of malicious scripts in the user's browser session within the context of the compromised site. Proper input validation and sanitization are essential to mitigate such risks.

Affected Version(s)

STVS ProVision 5.9.10

STVS ProVision 5.9.9

STVS ProVision 5.9.7

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47725 - Proof of Concept

References

https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-56...
third-party-advisory
https://packetstormsecurity.com/files/161158/STVS-ProVisi...
exploit
https://cxsecurity.com/issue/WLB-2021010188
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

LiquidWorm as Gjoko Krstic of Zero Science Lab
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CVE-2021-47725 : Cross-Site Scripting Vulnerability in STVS ProVision by STVS