CVE-2021-20088 mootools-more vulnerable to prototype pollution
Prototype pollution in mootools-more allows attackers to inject properties into Object.prototype, potentially leading to code execution or security bypasses.
- 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-2021-20088?
CVE-2021-20088 is a high-severity code injection vulnerability in mootools-more, published on 23 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in mootools-more 1.6.0 allows a malicious user to inject properties into Object.prototype.
Weakness: CWE-1321
Which versions are affected by CVE-2021-20088?
2 open source packages ship an affected version, including mootools-more. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mootools-more npm | All versions to 1.6.0 | None |
mootools-more npm | All versions to 1.6.0 | None |
Products include Mootools Mootools-More.
How do I fix CVE-2021-20088?
No fix has been published for CVE-2021-20088 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2021-20088 being exploited?
There is no known exploitation of CVE-2021-20088 in the wild and no public exploit code.
Sources
Also known as GHSA-fw45-938v-p26j.