What is CVE-2020-28722?

CVE-2020-28722 is a medium-severity vulnerability in Deskpro, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-05-12.

How severe is CVE-2020-28722?

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

XSS in Deskpro

CVE-2020-28722

Deskpro Cloud Platform and on-premise 2020.2.3.48207 from 2020-07-30 contains a cross-site scripting (XSS) vulnerability that can lead to an account takeover via custom email templates.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-05-12 · 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: 0.006 (47.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.3% 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

Deskpro

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.r29k.com/articles/bb/stored-xss-in-deskpro (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-28722?: CVE-2020-28722 is a medium-severity vulnerability in Deskpro, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-05-12.
How severe is CVE-2020-28722?: Medium severity. CVSS v3 base score is 5.4 out of 10.