CVE-2020-13384

8.8 highEPSS 2.5%

High (8.8) in monstra monstra. EPSS 2.5% chance of exploitation in the next 30 days.

Monstra CMS 3.0.4 allows remote authenticated users to upload and execute arbitrary PHP code via admin/index.php?id=filesmanager because, for example, .php filenames are blocked but .php7 filenames are not, a related issue to CVE-2017-18048.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 2.5% chance of exploitation in the next 30 days; higher than 84% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2020-05-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

monstra:monstra

References

https://www.exploit-db.com/exploits/48479
https://www.exploit-db.com/exploits/48479

Check your stack JSON