What is CVE-2023-40206?

CVE-2023-40206 is a medium-severity vulnerability in Hwk Wp 404 Auto Redirect To Similar Post, classified under Cross-site Scripting. CVSS score: 5.9/10. Published 2023-09-04.

How severe is CVE-2023-40206?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Is CVE-2023-40206 known to be exploited?

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

XSS in Hwk Wp 404 Auto Redirect To Similar Post

CVE-2023-40206

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in hwk-fr WP 404 Auto Redirect to Similar Post plugin <= 1.0.3 versions.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-09-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.004 (28.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

patchstack.com/database/vulnerability/wp-404-auto-redirect-to-similar-post/word… (Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2023-40206?: CVE-2023-40206 is a medium-severity vulnerability in Hwk Wp 404 Auto Redirect To Similar Post, classified under Cross-site Scripting. CVSS score: 5.9/10. Published 2023-09-04.
How severe is CVE-2023-40206?: Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2023-40206 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.