What is CVE-2021-27559?

CVE-2021-27559 is a medium-severity vulnerability in Monicahq Monica, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-02-22.

How severe is CVE-2021-27559?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Monicahq Monica

CVE-2021-27559

The Contact page in Monica 2.19.1 allows stored XSS via the Nickname field.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (43.9th percentile) — read the EPSS interpretation.

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.

Affected products

Monicahq Monica — versions 2.19.1
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

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

Frequently asked questions

What is CVE-2021-27559?: CVE-2021-27559 is a medium-severity vulnerability in Monicahq Monica, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-02-22.
How severe is CVE-2021-27559?: Medium severity. CVSS v3 base score is 5.4 out of 10.