CVE-2021-3734 Improper Restriction of Rendered UI Layers or Frames in yourls/yourls
Attackers can perform unauthorized actions on behalf of authenticated users via Cross-Site Request Forgery in YOURLS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-3734?
CVE-2021-3734 is a medium-severity vulnerability in yourls/yourls, published on 26 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
yourls is vulnerable to Improper Restriction of Rendered UI Layers or Frames
Which versions are affected by CVE-2021-3734?
2 open source packages ship an affected version, including yourls/yourls. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
yourls/yourls Packagist | All versions to 1.8.1 | None |
yourls/yourls Packagist | All versions to 1.8.1 | None |
Products include Yourls Yourls.
How do I fix CVE-2021-3734?
No fix has been published for CVE-2021-3734 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-3734 being exploited?
There is no known exploitation of CVE-2021-3734 in the wild and no public exploit code.
Other vulnerabilities in yourls/yourls
- CVE-2019-14537 Access of Resource Using Incompatible Type ('Type Confusion') in yourls/yourls
- CVE-2021-3785 Cross-site Scripting (XSS) - Stored in yourls/yourls
- CVE-2021-3783 Cross-site Scripting (XSS) - Reflected 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-r6g8-jmj9-g945.