CVE-2021-23416 Cross-site Scripting (XSS)
An attacker can execute arbitrary scripts in the victim's browser due to improper input sanitization in the curly-bracket-parser template 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-2021-23416?
CVE-2021-23416 is a medium-severity cross-site scripting vulnerability in curly-bracket-parser, published on 28 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
This affects all versions of package curly-bracket-parser. When used as a template library, it does not properly sanitize the user input.
Weakness: CWE-79
Which versions are affected by CVE-2021-23416?
2 open source packages ship an affected version, including curly-bracket-parser. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
curly-bracket-parser npm | All versions to 1.0.2 | None |
curly-bracket-parser npm | All versions to 1.0.2 | None |
Products include Curly-Bracket-Parser Project Curly-Bracket-Parser.
How do I fix CVE-2021-23416?
No fix has been published for CVE-2021-23416 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-2021-23416 being exploited?
There is no known exploitation of CVE-2021-23416 in the wild and no public exploit code.
Sources
Also known as GHSA-rqf8-8c89-mw29.