What is CVE-2022-40047?

CVE-2022-40047 is a medium-severity vulnerability in Flatpress, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-10-11.

How severe is CVE-2022-40047?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Flatpress

CVE-2022-40047

Flatpress v1.2.1 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via the page parameter at /flatpress/admin.php.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-10-11 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.013 (68.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.013 · change: +0.001

Affected products

Flatpress — versions 1.2.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

af854a3a-2127-422b-91ae-364da2661108 (URL Repurposed, Vendor Advisory)
github.com/flatpressblog/flatpress/issues/153 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-40047?: CVE-2022-40047 is a medium-severity vulnerability in Flatpress, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-10-11.
How severe is CVE-2022-40047?: Medium severity. CVSS v3 base score is 5.4 out of 10.