CVE-2020-26048

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

The file manager option in CuppaCMS before 2019-11-12 allows an authenticated attacker to upload a malicious file within an image extension and through a custom request using the rename function provided by the file manager is able to modify the image extension into PHP resulting in remote arbitrary code execution.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-434

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/CuppaCMS/CuppaCMS/issues/7Third Party Advisory
https://github.com/CuppaCMS/CuppaCMS/issues/7Third Party Advisory

Timeline

Published: Oct 5, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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