CVE-2019-20490 Auth bypass in n/a
Attackers can bypass authentication in cPanel webmail due to inconsistent username processing, potentially gaining unauthorized access to user accounts.
- 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-2019-20490?
CVE-2019-20490 is a high-severity authentication bypass vulnerability in Cpanel Cpanel, published on 17 Mar 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
cPanel before 82.0.18 allows authentication bypass because webmail usernames are processed inconsistently (SEC-499).
Which versions are affected by CVE-2019-20490?
It affects 1 product.
Products include Cpanel Cpanel.
How do I fix CVE-2019-20490?
No fix has been published for CVE-2019-20490 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2019-20490 being exploited?
There is no known exploitation of CVE-2019-20490 in the wild and no public exploit code.
Other vulnerabilities in Cpanel Cpanel
- CVE-2026-41940 WebPros cPanel & WHM and WP2 (WordPress Squared) Missing Authentication for Critical Function
- CVE-2003-1425 guestbook.cgi in cPanel 5.0 allows remote attackers to execute arbitrary commands via the template parameter.
- CVE-2004-1769 Code injection in n/a
- CVE-2004-1770 Command injection in n/a
- CVE-2020-26098 Command injection in n/a
Sources
Also known as GHSA-242h-2cfm-6j4h.