CVE-2019-19547

MEDIUM

Symantec Endpoint Detection and Response <4.3.0 - XSS

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-19547. PoCs published by nasbench.

AI-analyzed exploit summary The repository provides a technical description of an unauthenticated reflected XSS vulnerability in Symantec EDR on-prem versions prior to 4.3.0. It includes the vulnerable URL path and a reference to the official security advisory.

Description

Symantec Endpoint Detection and Response (SEDR), prior to 4.3.0, may be susceptible to a cross site scripting (XSS) issue. XSS is a type of issue that can enable attackers to inject client-side scripts into web pages viewed by other users. An XSS vulnerability may be used by attackers to potentially bypass access controls such as the same-origin policy.

Exploits (1)

nomisec WRITEUP 1 stars
by nasbench · poc
https://github.com/nasbench/CVE-2019-19547

The repository provides a technical description of an unauthenticated reflected XSS vulnerability in Symantec EDR on-prem versions prior to 4.3.0. It includes the vulnerable URL path and a reference to the official security advisory.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: Symantec EDR on-prem < 4.3.0
No auth needed
Prerequisites: Network access to the target EDR server
MITRE ATT&CK
mistral-large-3 · analyzed Feb 19, 2026 Full analysis →

References (3)

Core 3

Scores

CVSS v3 6.1
EPSS 0.0138
EPSS Percentile 68.8%
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 (3)
fedoraproject/fedora 30
fedoraproject/fedora 31
symantec/endpoint_detection_and_response < 4.3.0
Published Jan 13, 2020
Tracked Since Feb 18, 2026