What is CVE-2020-21387?

CVE-2020-21387 is a medium-severity vulnerability in Maccms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-10-04.

How severe is CVE-2020-21387?

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

XSS in Maccms

CVE-2020-21387

A cross-site scripting (XSS) vulnerability in the parameter type_en of Maccms 10 allows attackers to obtain the administrator cookie and escalate privileges via a crafted payload.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (44.0th 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

Maccms — versions 10.0
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2020-21387?: CVE-2020-21387 is a medium-severity vulnerability in Maccms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-10-04.
How severe is CVE-2020-21387?: Medium severity. CVSS v3 base score is 6.1 out of 10.