XSS in 1234n Minicms

CVE-2018-20520

MiniCMS V1.10 has XSS via the mc-admin/post-edit.php query string, a related issue to CVE-2018-10296 and CVE-2018-16233.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.009 (55.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

1234n Minicms — versions 1.10
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

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

Frequently asked questions

What is CVE-2018-20520?: CVE-2018-20520 is a medium-severity vulnerability in 1234n Minicms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-12-27.
How severe is CVE-2018-20520?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2018-20520 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.