XSS in Zammad

CVE-2021-42088

An issue was discovered in Zammad before 4.1.1. The Chat functionality allows XSS because clipboard data is mishandled.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (46.4th percentile) — read the EPSS interpretation.

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.

Affected products

Zammad
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-42088?: CVE-2021-42088 is a medium-severity vulnerability in Zammad, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-10-07.
How severe is CVE-2021-42088?: Medium severity. CVSS v3 base score is 6.1 out of 10.