CVE-2021-33853
Last modified
CVE-2021-33853 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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. EPSS estimates a 0.57% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| X2engine | X2crm | 8.0 |
References
- https://cybersecurityworks.com/zerodays/cve-2021-33853-stored-cross-site-scripting-in-x2crm.htmlExploit, Third Party Advisory
- https://cybersecurityworks.com/zerodays/cve-2021-33853-stored-cross-site-scripting-in-x2crm.htmlExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Scan your code nowSource: NVD / NIST