XSS in Zammad

CVE-2020-26035

An issue was discovered in Zammad before 3.4.1. There is Stored XSS via a Tags element in a TIcket.

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: 0.005 (43.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-26035: held from 0.005 to 0.005.

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

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-26035?
CVE-2020-26035 is a medium-severity vulnerability in Zammad, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-12-28.
How severe is CVE-2020-26035?
Medium severity. CVSS v3 base score is 5.4 out of 10.