CVE-2019-14537 Access of Resource Using Incompatible Type ('Type Confusion') in yourls/yourls
Attackers can bypass login via type juggling in the API, allowing unauthorized access to YOURLS accounts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-14537?
CVE-2019-14537 is a critical authentication bypass vulnerability in n/a, published on 7 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
YOURLS through 1.7.3 is affected by a type juggling vulnerability in the api component that can result in login bypass.
Weakness: CWE-843
Which versions are affected by CVE-2019-14537?
2 open source packages ship an affected version, including yourls/yourls. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
yourls/yourls Packagist | All versions | 1.7.4 |
yourls/yourls Packagist | All versions | 1.7.4 |
Products include Yourls Yourls.
How do I fix CVE-2019-14537?
Upgrade yourls/yourls to 1.7.4 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2019-14537 being exploited?
There is no known exploitation of CVE-2019-14537 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
- CVE-2021-3785 Cross-site Scripting (XSS) - Stored in yourls/yourls
- CVE-2021-3783 Cross-site Scripting (XSS) - Reflected in yourls/yourls
- CVE-2021-3734 Improper Restriction of Rendered UI Layers or Frames in yourls/yourls
- CVE-2020-27388 YOURLS Stored Cross Site Scripting (XSS)
- CVE-2011-3824 Information disclosure in n/a
Sources
Also known as GHSA-vf23-f26f-mjj9.