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Fencer Intel
high 7.2

CVE-2020-28672 in the critical feed json

MonoCMS Blog 1.0 is affected by incorrect access control that can lead to remote arbitrary code execution.

published 5y ago modified 4mo ago also EUVD-2020-21070

cvss
7.2
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
12.1%
EPSS 12.1% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

MonoCMS Blog 1.0 is affected by incorrect access control that can lead to remote arbitrary code execution. At monofiles/category.php:27, user input can be saved to category/[foldername]/index.php causing RCE.

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Exploit prediction

12.14% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/fortest-1/vuln/blob/main/MonoCMS%20Blog/MonoCMS%20Blog%201.0_remote_code_execution.md 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 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C

References

Sources

Fencer Intel 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.