What is CVE-2020-26048?

CVE-2020-26048 is a high-severity vulnerability in Cuppacms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2020-10-05.

How severe is CVE-2020-26048?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2020-26048 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Cuppacms

CVE-2020-26048

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.

Vulnerability class: Unrestricted File Upload

EPSS: 0.019 (77.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cuppacms
N/a — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-26048?: CVE-2020-26048 is a high-severity vulnerability in Cuppacms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2020-10-05.
How severe is CVE-2020-26048?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2020-26048 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.