What is CVE-2021-24187?

CVE-2021-24187 is a medium-severity vulnerability in Clogica Seo Redirection, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-04-05.

How severe is CVE-2021-24187?

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

Is CVE-2021-24187 known to be exploited?

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

XSS in Clogica Seo Redirection

CVE-2021-24187

The setting page of the SEO Redirection Plugin - 301 Redirect Manager WordPress plugin before 6.4 is vulnerable to reflected Cross-Site Scripting (XSS) as user input is not properly sanitised before being output in an attribute.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-04-05 · 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: 0.006 (48.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Clogica Seo Redirection
Seo Redirection Plugin - 301 Redirect Manager — versions 6.4

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

wpscan.com/vulnerability/c234700e-61dd-46a0-90fb-609e704269a9 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-24187?: CVE-2021-24187 is a medium-severity vulnerability in Clogica Seo Redirection, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-04-05.
How severe is CVE-2021-24187?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2021-24187 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.