MonoX through 5.1.40.5152 allows administrators to execute arbitrary code by modifying an ASPX template.

published 2020-04-29 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-4776

cvss: 7.2; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.7%; EPSS 1.7% chance of exploitation in 30 days, percentile 76%
public exploits: 0; none known

Exploit prediction

1.67% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/belong2yourself/vulnerabilities/tree/master/MonoX%20CMS/Privilege%20Escalation%20via%20Template%20Modification referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness

CWE-552 Files or Directories Accessible to External Parties

References

github.com /belong2yourself/vulnerabilities/tree/master/MonoX%20CMS/Privilege%20Escalation%20via%20Template%20Modificatio
exploit, third-party-advisory

Sources

CVE List CVE-2020-12470
NVD CVE-2020-12470

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary