CVE-2021-36548

9.8 criticalEPSS 3.3%

Critical (9.8) in monstra monstra. EPSS 3.3% chance of exploitation in the next 30 days.

A remote code execution (RCE) vulnerability in the component /admin/index.php?id=themes&action=edit_template&filename=blog of Monstra v3.0.4 allows attackers to execute arbitrary commands via a crafted PHP file.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 3.3% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2021-10-28
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

monstra:monstra

References

https://github.com/monstra-cms/monstra/issues/470
https://github.com/monstra-cms/monstra/issues/470

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