What is CVE-2022-27845?

CVE-2022-27845 is a medium-severity vulnerability in Plausible Analytics, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-04-11.

How severe is CVE-2022-27845?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2022-27845 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Plausible Analytics

CVE-2022-27845

Authenticated (admin or higher user role) Stored Cross-Site Scripting (XSS) in PlausibleHQ Plausible Analytics (WordPress plugin) <= 1.2.2

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-04-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (56.5th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Plausible Analytics
Plausiblehq Plausible Analytics (WordPress Plugin) — versions <= 1.2.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

wordpress.org/plugins/plausible-analytics/ (Third Party Advisory)
patchstack.com/database/vulnerability/plausible-analytics/wordpress-plausible-a… (Third Party Advisory)

Frequently asked questions

What is CVE-2022-27845?: CVE-2022-27845 is a medium-severity vulnerability in Plausible Analytics, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2022-04-11.
How severe is CVE-2022-27845?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2022-27845 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.