What is CVE-2021-28417?

CVE-2021-28417 is a medium-severity vulnerability in Seopanel Seo Panel, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-03-18.

How severe is CVE-2021-28417?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Seopanel Seo Panel

CVE-2021-28417

A cross-site scripting (XSS) issue in Seo Panel 4.8.0 allows remote attackers to inject JavaScript via archive.php and the "search_name" parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-03-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.019 (78.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000

Affected products

Seopanel Seo Panel — versions 4.8.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/seopanel/Seo-Panel/issues/208 (Exploit, Third Party Advisory, Issue Tracking)
packetstormsecurity.com/files/162914/Seo-Panel-4.8.0-Cross-Site-Scripting.html (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2021-28417?: CVE-2021-28417 is a medium-severity vulnerability in Seopanel Seo Panel, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-03-18.
How severe is CVE-2021-28417?: Medium severity. CVSS v3 base score is 4.8 out of 10.