CVE-2020-21387

MEDIUM 6.1CVE-2020-21387 · Published 04/10/2021 · updated 17/06/2026

In short

CVE-2020-21387 is a MEDIUM (CVSS 6.1) vulnerability affecting maccms (maccms).
Chance of exploitation in the next 30 days (EPSS): 0.57%, higher than 47.4% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
maccms maccms	`= 10.0`	No fix yet

Description

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.

References

magicblack/maccms10 · Exploit

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