CVE-2018-19420 File upload in n/a
Attackers can upload malicious HTML files with unrecognized extensions to execute arbitrary code due to insufficient validation in GetSimple CMS.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-19420?
CVE-2018-19420 is a low-severity vulnerability in n/a, published on 21 Nov 2018. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
In GetSimpleCMS 3.3.15, admin/upload.php blocks .html uploads but there are several alternative cases in which HTML can be executed, such as a file with no extension or an unrecognized extension (e.g., the test or test.asdf filename), because of admin/upload-uploadify.php, and validate_safe_file in admin/inc/security_functions.php.
Weakness: CWE-434
Which versions are affected by CVE-2018-19420?
It affects 1 product.
Products include Get-Simple Getsimple Cms.
How do I fix CVE-2018-19420?
No fix has been published for CVE-2018-19420 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-19420 being exploited?
There is no known exploitation of CVE-2018-19420 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-3h23-694f-8263.