CVE-2021-33849 Cross-site scripting in Zoho CRM Lead Magnet
Attackers can execute arbitrary JavaScript in users' browsers via XSS in the Zoho CRM Lead Magnet plugin when modifying or deleting forms.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-33849?
CVE-2021-33849 is a medium-severity cross-site scripting vulnerability in Zoho CRM Lead Magnet, published on 5 Oct 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A Cross-Site Scripting (XSS) attack can cause arbitrary code (JavaScript) to run in a user’s browser while the browser is connected to a trusted website. The attack targets your application's users and not the application itself while using your application as the attack's vehicle. The XSS payload executes whenever the user changes the form values or deletes a created form in Zoho CRM Lead Magnet Version 1.7.2.4.
Weakness: CWE-79
Which versions are affected by CVE-2021-33849?
It affects 1 product.
Products include Zohocorp Zoho Crm Lead Magnet.
How do I fix CVE-2021-33849?
No fix has been published for CVE-2021-33849 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2021-33849 being exploited?
There is no known exploitation of CVE-2021-33849 in the wild and no public exploit code.
Other vulnerabilities in Zoho CRM Lead Magnet
Sources
Also known as GHSA-jhx6-45qh-j9xp.