# 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.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **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 available:** No
- **Published:** 20 Feb 2023
- **Updated:** 10 Mar 2025
- **Also known as:** GHSA-465f-mxxh-grc4

## 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 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2021-32859?

2 open source packages ship an affected version, including baremetrics-calendar. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `baremetrics-calendar` | npm | All versions to 1.0.14 | None |
| `baremetrics-calendar` | npm | All versions to 1.0.14 | None |

Products: 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.

## Is CVE-2021-32859 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-32859 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-32859 and fix it if it is affected.

What it is: 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.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-32859 exists.

Affected packages and fixed versions:
- baremetrics-calendar (npm): affected all versions up to 1.0.14; no fix listed
- baremetrics-calendar (npm): affected all versions up to 1.0.14; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-32859/ (Markdown: https://insights.sbomify.com/CVE-2021-32859/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-32859
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-32859
- OSV: https://osv.dev/vulnerability/CVE-2021-32859

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-32859/
Summaries are generated and may contain mistakes; the official description above is the record.