CVE-2021-33853 — MEDIUM (5.4)

Vulnerability Description

A Cross-Site Scripting (XSS) attack can cause arbitrary code (javascript) to run in a user’s browser while the browser is connected to a trusted website. As the vehicle for the attack, the application targets the users and not the application itself. Additionally, the XSS payload is executed when the user attempts to access any page of the CRM.

CVSS Score

5.4

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
X2Engine	X2Crm	8.0

Related Weaknesses (CWE)

CWE-79

References

https://cybersecurityworks.com/zerodays/cve-2021-33853-stored-cross-site-scriptiExploitThird Party Advisory
https://cybersecurityworks.com/zerodays/cve-2021-33853-stored-cross-site-scriptiExploitThird Party Advisory

FAQ

What is CVE-2021-33853?

CVE-2021-33853 is a vulnerability with a CVSS score of 5.4 (MEDIUM). A Cross-Site Scripting (XSS) attack can cause arbitrary code (javascript) to run in a user’s browser while the browser is connected to a trusted website. As the vehicle for the attack, the application...

How severe is CVE-2021-33853?

CVE-2021-33853 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-33853?

Check the references section above for vendor advisories and patch information. Affected products include: X2Engine X2Crm.