Vulnerability record · CVE-2021-39413 · published 5 November 2021

CVE-2021-39413: Seopanel seo panel cross-site scripting vulnerability

Seopanel · Seo Panel

Multiple Cross Site Scripting (XSS) vulnerabilities exits in SEO Panel v4.8.0 via the (1) to_time parameter in (a) backlinks.php, (b) analytics.php, (c) log.php, (d) overview.php, (e) pagespeed.php, (f) rank.php, (g) review.php, (h) saturationchecker.php, (i) social_media.php, and (j) reports.php; the (2) from_time parameter in (a) backlinks.php, (b) analytics.php, (c) log.php, (d) overview.php, (e) pagespeed.php, (f) rank.php, (g) review.php, (h) saturationchecker.php, (i) social_media.php, (j) webmaster-tools.php, and (k) reports.php; the (3) order_col parameter in (a) analytics.php, (b) review.php, (c) social_media.php, and (d) webmaster-tools.php; and the (4) pageno parameter in (a) alerts.php, (b) log.php, (c) keywords.php, (d) proxy.php, (e) searchengine.php, and (f) siteauditor.php.

6.1 CVSS 3.1 Medium EPSS 0.84% · top 43.9% CWE-79 · Cross-site scripting

6.1CVSS 3.1 base score, v2 4.3

0.84%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

2References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Seo Panel Seopanel

References

Link	Tags
https://sisl.lab.uic.edu/projects/chess/seo-panel/	ExploitThird Party Advisory
https://sisl.lab.uic.edu/projects/chess/seo-panel/	ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-39413), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.