CVE-2021-26903

MEDIUM

LMA ISIDA Retriever 5.2 - Cross-Site Scripting via query['text']

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-26903. PoCs published by Security-AVS.

AI-analyzed exploit summary This repository contains a writeup describing a Reflected XSS vulnerability in ISIDA RETRIEVER v5.2, where the 'query['text']' parameter is vulnerable. No exploit code is provided, only a description of the vulnerability.

Description

LMA ISIDA Retriever 5.2 is vulnerable to XSS via query['text'].

Exploits (1)

nomisec WRITEUP
by Security-AVS · poc
https://github.com/Security-AVS/CVE-2021-26903

This repository contains a writeup describing a Reflected XSS vulnerability in ISIDA RETRIEVER v5.2, where the 'query['text']' parameter is vulnerable. No exploit code is provided, only a description of the vulnerability.

Classification
Writeup 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Theoretical
Target: ISIDA RETRIEVER v5.2
No auth needed
Prerequisites: Access to the vulnerable parameter in the application
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Vendor Advisory x_refsource_misc
https://www.isida.by/category/news/
Third Party Advisory x_refsource_misc
https://github.com/Security-AVS/CVE-2021-26903

Scores

CVSS v3 6.1
EPSS 0.0098
EPSS Percentile 57.6%
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)
isida/retriever 5.2
Published Feb 26, 2021
Tracked Since Feb 18, 2026