CVE-2021-28420

MEDIUM

Seo Panel 4.8.0 - Cross-Site Scripting via alerts.php from_time Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-28420. PoCs published by Piyush Patil.

AI-analyzed exploit summary This exploit demonstrates a reflected XSS vulnerability in Seo Panel 4.8.0 via the 'from_time' parameter in alerts.php. The payload injects JavaScript that triggers an alert with the document cookie when the mouse hovers over the 'Period' field.

Description

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

Exploits (1)

exploitdb WORKING POC
by Piyush Patil · textwebappsphp
https://www.exploit-db.com/exploits/49935

This exploit demonstrates a reflected XSS vulnerability in Seo Panel 4.8.0 via the 'from_time' parameter in alerts.php. The payload injects JavaScript that triggers an alert with the document cookie when the mouse hovers over the 'Period' field.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Seo Panel 4.8.0
Auth required
Prerequisites: Access to the SEO admin panel · User interaction (hovering over the 'Period' field)
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://github.com/seopanel/Seo-Panel/issues/206
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
http://packetstormsecurity.com/files/162914/Seo-Panel-4.8.0-Cross-Site-Scripting.html

Scores

CVSS v3 4.8
EPSS 0.0193
EPSS Percentile 77.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
seopanel/seo_panel 4.8.0
Published Mar 18, 2021
Tracked Since Feb 18, 2026