CVE-2020-21503 Business logic in n/a

High 7.5 Published Updated

Attackers can manipulate credit parameters to purchase products for free by bypassing price validation logic.

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

What is CVE-2020-21503?

CVE-2020-21503 is a high-severity vulnerability in n/a, published on 5 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

waimai Super Cms 20150505 has a logic flaw allowing attackers to modify a price, before form submission, by observing data in a packet capture. By setting the index.php?m=gift&a=addsave credit parameter to -1, the product is sold for free.

Weakness: CWE-668

Which versions are affected by CVE-2020-21503?

It affects 1 product.

Products include Waimai Super Cms Project Waimai Super Cms.

How do I fix CVE-2020-21503?

No fix has been published for CVE-2020-21503 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-21503 being exploited?

There is no known exploitation of CVE-2020-21503 in the wild and no public exploit code.

Sources

Also known as GHSA-42wv-rq8p-rm59.

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