CandidATS 3.0.0 - Stored XSS to Account Takeover

8.8

High

Discovered by 

Carlos Bello

Offensive Team, Fluid Attacks

Summary

Full name

CandidATS 3.0.0 - Stored XSS to Account Takeover

Code name

State

Public

Release date

Oct 27, 2022

Affected product

CandidATS

Affected version(s)

Version 3.0.0

Vulnerability name

Stored cross-site scripting (XSS)

Remotely exploitable

Yes

CVSS v3.1 vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1 base score

8.8

Exploit available

Yes

Description

CandidATS version 3.0.0 allows an external attacker to steal the cookie of arbitrary users. This is possible because the application does not correctly validate the files uploaded by the user.

Vulnerability

The Stored XSS present in CandidATS 3.0.0 allows an unauthenticated remote attacker to perform an Account Takeover. To trigger this vulnerability, we will need to force a user to upload a malicious file and wait for them to view the file.

Exploitation

In this attack we will obtain the administrator user account, through a malicious link.

Our security policy

We have reserved the CVE-2022-42750 to refer to these issues from now on. Disclosure policy

System Information

  • Version: CandidATS 3.0.0

  • Operating System: GNU/Linux

Mitigation

There is currently no patch available for this vulnerability.

References

Vendor page https://candidats.net/

Timeline

Vulnerability discovered

Oct 7, 2022

Vendor contacted

Oct 7, 2022

Vendor replied

Oct 7, 2022

Public disclosure

Oct 27, 2022

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Fluid Attacks' solutions enable organizations to identify, prioritize, and remediate vulnerabilities in their software throughout the SDLC. Supported by AI, automated tools, and pentesters, Fluid Attacks accelerates companies' risk exposure mitigation and strengthens their cybersecurity posture.

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Fluid Attacks' solutions enable organizations to identify, prioritize, and remediate vulnerabilities in their software throughout the SDLC. Supported by AI, automated tools, and pentesters, Fluid Attacks accelerates companies' risk exposure mitigation and strengthens their cybersecurity posture.

SOC 2 Type II

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