CVE-2021-43009

MEDIUM

OpServices OpMon <= 9.11 - Cross-Site Scripting via Search Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-43009. PoCs published by Marlon Petry.

AI-analyzed exploit summary This exploit demonstrates a Cross-Site Scripting (XSS) vulnerability in Opmon 9.11 by injecting a malicious script into the 'filter[search]' parameter. The script steals cookies and sends them to an attacker-controlled server.

Description

A Cross Site Scripting (XSS) vulnerability exists in OpServices OpMon through 9.11 via the search parameter in the request URL.

Exploits (1)

exploitdb WORKING POC
by Marlon Petry · textremotemultiple
https://www.exploit-db.com/exploits/50857

This exploit demonstrates a Cross-Site Scripting (XSS) vulnerability in Opmon 9.11 by injecting a malicious script into the 'filter[search]' parameter. The script steals cookies and sends them to an attacker-controlled server.

Classification
Working Poc 95%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Opmon 9.11
No auth needed
Prerequisites: Access to the vulnerable Opmon web interface
MITRE ATT&CK
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
http://packetstormsecurity.com/files/166619/Opmon-9.11-Cross-Site-Scripting.html
Exploit, Third Party Advisory x_refsource_misc
https://www.exploit-db.com/exploits/50857

Scores

CVSS v3 6.1
EPSS 0.0223
EPSS Percentile 80.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
opservices/opmon < 9.11
Published Apr 08, 2022
Tracked Since Feb 18, 2026