CVE-2021-23411 Cross-site Scripting (XSS)
An attacker can inject malicious JavaScript into anchor tags via input, leading to code execution upon user interaction in applications using this library.
- 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-2021-23411?
CVE-2021-23411 is a medium-severity cross-site scripting vulnerability in anchorme, published on 21 Jul 2021. 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
Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the main functionality. It accepts input that can result in the output (an anchor a tag) containing undesirable Javascript code that can be executed upon user interaction.
Weakness: CWE-79
Which versions are affected by CVE-2021-23411?
2 open source packages ship an affected version, including anchorme. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
anchorme npm | All versions to 2.1.2 | None |
anchorme npm | All versions to 2.1.2 | None |
Products include Anchorme Project Anchorme.
How do I fix CVE-2021-23411?
No fix has been published for CVE-2021-23411 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2021-23411 being exploited?
There is no known exploitation of CVE-2021-23411 in the wild and no public exploit code.
Sources
Also known as GHSA-w4wq-rvmq-77x7.