What is CVE-2020-35418?

CVE-2020-35418 is a medium-severity vulnerability in Group-Office Group Office, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-04-14.

How severe is CVE-2020-35418?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Group-Office Group Office

CVE-2020-35418

Cross Site Scripting (XSS) in the contact page of Group Office CRM 6.4.196 by uploading a crafted svg file.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-04-14 · last modified 2026-06-17.

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: 0.005 (42.4th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Group-Office Group Office — versions 6.4.196

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

fatihhcelik.blogspot.com/2020/12/group-office-crm-stored-xss-via-svg-file.html (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-35418?: CVE-2020-35418 is a medium-severity vulnerability in Group-Office Group Office, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-04-14.
How severe is CVE-2020-35418?: Medium severity. CVSS v3 base score is 5.4 out of 10.