CVE-2021-32859 Baremetrics date range picker vulnerable to Cross-site Scripting
An attacker can inject arbitrary HTML or JavaScript via the placeholder field in the Baremetrics date range picker, leading to cross-site scripting.
- 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-2021-32859?
CVE-2021-32859 is a medium-severity cross-site scripting vulnerability in baremetrics-calendar, published on 20 Feb 2023. 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
The Baremetrics date range picker is a solution for selecting both date ranges and single dates from a single calender view. Versions 1.0.14 and prior are prone to cross-site scripting (XSS) when handling untrusted `placeholder` entries. An attacker who is able to influence the field `placeholder` when creating a `Calendar` instance is able to supply arbitrary `html` or `javascript` that will be rendered in the context of a user leading to XSS. There are no known patches for this issue.
Weakness: CWE-79
Which versions are affected by CVE-2021-32859?
2 open source packages ship an affected version, including baremetrics-calendar. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
baremetrics-calendar npm | All versions to 1.0.14 | None |
baremetrics-calendar npm | All versions to 1.0.14 | None |
Products include Baremetrics Date Range Picker.
How do I fix CVE-2021-32859?
No fix has been published for CVE-2021-32859 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-2021-32859 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-32859 exists.
Sources
Also known as GHSA-465f-mxxh-grc4.