What is CVE-2022-4605?

CVE-2022-4605 is a medium-severity vulnerability in Flatpress, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-12-18.

How severe is CVE-2022-4605?

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

XSS in Flatpress

CVE-2022-4605

Cross-site Scripting (XSS) - Stored in GitHub repository flatpressblog/flatpress prior to 1.3.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-12-18 · last modified 2026-06-17.

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: 0.005 (43.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

Flatpress
Flatpressblog Flatpressblog/flatpress — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

huntr.dev/bounties/df455d44-0dec-470c-b576-8ea86ec5a367 (Exploit, Patch, Third Party Advisory)
github.com/flatpressblog/flatpress/commit/742f8b04f233e3cc52bed11f79fcc9911faee… (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-4605?: CVE-2022-4605 is a medium-severity vulnerability in Flatpress, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-12-18.
How severe is CVE-2022-4605?: Medium severity. CVSS v3 base score is 5.4 out of 10.