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CVE-2020-26048

HIGH
8.8
CVSS Score
Published: October 5, 2020 at 02:27 PM UTC
Updated: June 17, 2026 at 03:07 AM UTC
1 product affected across 1 vendorCuppacms

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Severity
HIGH8.8
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Cuppacms· Cuppacms
95%
v < 2019-11-12
Affected range stops below 2019-11-12, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/CuppaCMS/CuppaCMS/issues/7

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-434

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