---
id: "CVE-2026-125793"
page: "https://infrastack.ai/live/CVE-2026-125793"
kind: "vulnerability"
aliases: ["CVE-2026-125793"]
title: "Flexmls IDX WordPress plugin: reflected XSS through input handling"
severity: "high"
cvss: 7.1
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["flexmls-idx", "package", "real-estate-sites", "wordpress"]
not_affected_if: ["plugin-not-installed"]
published_at: "2026-11-15T15:16:47+00:00"
first_seen_at: "2026-11-15T15:36:07+00:00"
updated_at: "2026-11-15T15:37:13+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-125793", "first_seen_at": "2026-11-15T15:36:07+00:00"}]
exploit_sources: []
---

# Flexmls IDX WordPress plugin: reflected XSS through input handling

Link for people: https://infrastack.ai/live/CVE-2026-125793 (this .md is for agents)

The flexmls Flexmls IDX plugin (flexmls-idx) does not neutralize input in generated web pages, enabling reflected cross-site scripting. An attacker who gets a victim to open a crafted link can run script in the victim's browser session on the affected site.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Flexmls IDX plugin version in the WordPress admin plugins list or the plugin header in `flexmls-idx/flexmls-idx.php`
- Confirm whether the installed version is `4.1.2` or earlier, the range the sources name as affected

## Fix

- Flexmls IDX: unknown; the sources name the affected range (through `4.1.2`) but do not state a fixed version

## Timeline

- 2026-11-15T15:36:07+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-125793

## From the sources

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in flexmls Flexmls® IDX flexmls-idx allows Reflected XSS.This issue affects Flexmls® IDX: from n/a through 4.1.2.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_