What is CVE-2022-3934?

CVE-2022-3934 is a medium-severity vulnerability in Mehanoid Flat Pm, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 5.4/10. Published 2022-12-12.

How severe is CVE-2022-3934?

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

Is CVE-2022-3934 known to be exploited?

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

Vulnerability in Mehanoid Flat Pm

CVE-2022-3934

The FlatPM WordPress plugin before 3.0.13 does not sanitise and escape some parameters before outputting them back in pages, leading to Reflected Cross-Site Scripting which could be used against high privilege users such as admin

Published 2022-12-12 · 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: 0.009 (57.6th percentile), scored 2026-10-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000

Affected products

Mehanoid Flat Pm
Flatpm — versions 0

Public proof-of-concept exploits

References

wpscan.com/vulnerability/ab68381f-c4b8-4945-a6a5-1d4d6473b73a (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2022-3934?: CVE-2022-3934 is a medium-severity vulnerability in Mehanoid Flat Pm, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 5.4/10. Published 2022-12-12.
How severe is CVE-2022-3934?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2022-3934 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.