CVE-2020-26174 File upload in n/a

High 8.8 Published Updated

Attackers can bypass client-side file type restrictions to upload arbitrary files as attachments, potentially leading to code execution or data modification.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-26174?

CVE-2020-26174 is a high-severity vulnerability in n/a, published on 18 Dec 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

tangro Business Workflow before 1.18.1 requests a list of allowed filetypes from the server and restricts uploads to the filetypes contained in this list. However, this restriction is enforced in the browser (client-side) and can be circumvented. This allows an attacker to upload any file as an attachment to a workitem.

Weakness: CWE-434

Which versions are affected by CVE-2020-26174?

It affects 1 product.

Products include Tangro Business Workflow.

How do I fix CVE-2020-26174?

No fix has been published for CVE-2020-26174 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-26174 being exploited?

There is no known exploitation of CVE-2020-26174 in the wild and no public exploit code.

Sources

Also known as GHSA-g862-hhr5-33gv.

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