What is CVE-2021-36092?

CVE-2021-36092 is a medium-severity vulnerability in Otrs, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2021-07-26.

How severe is CVE-2021-36092?

Medium severity. CVSS v3 base score is 6.5 out of 10.

XSS in Otrs

CVE-2021-36092

It's possible to create an email which contains specially crafted link and it can be used to perform XSS attack. This issue affects: OTRS AG ((OTRS)) Community Edition:6.0.x version 6.0.1 and later versions. OTRS AG OTRS: 7.0.x version 7.0.27 and prior versions; 8.0.x version 8.0.14 and prior versions.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-07-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Otrs
Otrs Ag — versions 7.0.x, 8.0.x
Otrs Ag ((Otrs)) Community Edition — versions 6.0.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

otrs.com/release-notes/otrs-security-advisory-2021-15/ (Vendor Advisory)

Frequently asked questions

What is CVE-2021-36092?: CVE-2021-36092 is a medium-severity vulnerability in Otrs, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2021-07-26.
How severe is CVE-2021-36092?: Medium severity. CVSS v3 base score is 6.5 out of 10.