XSS in X2engine X2crm
CVE-2021-33853
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.006 (45.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- X2engine X2crm — versions 8.0
- X2crm — versions 8
Weakness classification (CWE)
References
- cybersecurityworks.com/zerodays/cve-2021-33853-stored-cross-site-scripting-in-x… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-33853?
- CVE-2021-33853 is a medium-severity vulnerability in X2engine X2crm, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-03-16.
- How severe is CVE-2021-33853?
- Medium severity. CVSS v3 base score is 5.4 out of 10.