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Medium, CVSS 6.1amended

Baremetrics date range picker vulnerable to Cross-site Scripting

CVE-2021-32859GHSA-465f-mxxh-grc4

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • npm baremetrics-calendar

    Affected
    <= 1.0.14
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
6.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
  • CVE-2021-32859: 0.54% estimated exploitation activity in the next 30 days; percentile 45.32 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

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.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 2 · amended ·

    Amended from ghsa record GHSA-465f-mxxh-grc4

  2. Revision 1 · created ·

    Published from osv record GHSA-465f-mxxh-grc4

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2021-32859

Advisory: Baremetrics date range picker vulnerable to Cross-site Scripting
IDs: CVE-2021-32859, GHSA-465f-mxxh-grc4
Record: https://patchnext.com/advisories/cve-2021-32859 (revision 2, source checked 26 Oct 2026, 12:21 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm baremetrics-calendar: affected <= 1.0.14

## Suggested inspection (read-only)
- `npm ls baremetrics-calendar --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on baremetrics-calendar.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-465f-mxxh-grc4 (OSV record GHSA-465f-mxxh-grc4 lists affected ranges: npm baremetrics-calendar >=0 <=1.0.14)
- Verified: https://github.com/advisories/GHSA-465f-mxxh-grc4 (GitHub-reviewed advisory GHSA-465f-mxxh-grc4 lists affected ranges: npm baremetrics-calendar >=0 <=1.0.14)

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