What is CVE-2020-13897?

CVE-2020-13897 is a medium-severity vulnerability in Hesk, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-06-07.

How severe is CVE-2020-13897?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Hesk

CVE-2020-13897

HESK before 3.1.10 allows reflected XSS.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-06-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (48.9th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.9% 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

Hesk

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.hesk.com/demo/docs/changelog.html (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2020-13897?: CVE-2020-13897 is a medium-severity vulnerability in Hesk, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-06-07.
How severe is CVE-2020-13897?: Medium severity. CVSS v3 base score is 6.1 out of 10.