CVE-2021-43353 Crisp Live Chat <= 0.31 Cross-Site Request Forgery to Stored Cross-Site Scripting
Attackers can exploit missing nonce validation to inject arbitrary scripts via CSRF, potentially leading to stored XSS in the Crisp Live Chat plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-43353?
CVE-2021-43353 is a high-severity vulnerability in Crisp Live Chat, published on 18 Jan 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The Crisp Live Chat WordPress plugin is vulnerable to Cross-Site Request Forgery due to missing nonce validation via the crisp_plugin_settings_page function found in the ~/crisp.php file, which made it possible for attackers to inject arbitrary web scripts in versions up to, and including 0.31.
Weakness: CWE-352
Which versions are affected by CVE-2021-43353?
It affects 1 product.
Products include Crisp Crisp.
How do I fix CVE-2021-43353?
No fix has been published for CVE-2021-43353 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-43353 being exploited?
There is no known exploitation of CVE-2021-43353 in the wild and no public exploit code.
Other vulnerabilities in Crisp Live Chat
Sources
Also known as GHSA-mrwr-9wqr-6fc2.