posthog-js (npm)

Known vulnerabilities and malicious package reports for posthog-js on npm, live from OSV, with CISA KEV exploitation status and EPSS scores.

Known package reports

1 malicious package report and 1 vulnerability returned by OSV. Check a specific version to see which reports apply.

If you installed a reported malicious release, remove it and rotate the credentials that machine could access. Upgrading does not undo code that already ran.

MAL-2025-191402: Malicious package report

Malicious code in posthog-js (npm)

Published 2025-11-25.

Updated 2025-12-01.

Reported affected releases: 1.297.3.

GHSA-8775-5hwv-wr6v: Vulnerability

Potential for cross-site scripting in PostHog-js

Published 2023-05-22.

Updated 2026-09-10.

Affected ranges: introduced 0, fixed 1.57.2.

Fix versions reported by the advisory: 1.57.2.

Severity: MEDIUM.

CVE-2023-32325

Source: OSV, including OpenSSF malicious-package reports and GitHub advisories. No known report is not proof a package is safe.