---
id: "CVE-2026-124506"
page: "https://infrastack.ai/live/CVE-2026-124506"
kind: "vulnerability"
aliases: ["CVE-2026-124506"]
title: "Dianping CAT: report handler lets a crafted domain run scripts in browsers"
severity: "medium"
cvss: 5.0
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["dianping-cat", "java", "package", "self-hosted"]
not_affected_if: ["other-versions", "report-page-not-exposed"]
published_at: "2026-11-09T01:17:02+00:00"
first_seen_at: "2026-11-09T01:23:57+00:00"
updated_at: "2026-11-09T01:25:33+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-124506", "first_seen_at": "2026-11-09T01:23:57+00:00"}]
exploit_sources: []
---

# Dianping CAT: report handler lets a crafted domain run scripts in browsers

Link for people: https://infrastack.ai/live/CVE-2026-124506 (this .md is for agents)

Dianping CAT, a Java application monitoring platform, has a cross-site scripting flaw in its hourly report page where the domain argument is not sanitized. An attacker who gets a victim to open a crafted link can run script in the victim's browser session.

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

## How to check

- Check whether the Dianping CAT server is running, for example by looking for the CAT report pages under the web application.
- Confirm the installed version: the affected versions are `3.0.0`, `3.1.0` and `4.0-RC1`.

## Timeline

- 2026-11-09T01:23:57+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-124506

## From the sources

A vulnerability has been found in Dianping CAT 3.0.0/3.1.0/4.0-RC1. This vulnerability affects the function Model.getDomain of the file WEB-INF/tags/hourlyReport.tag of the component Report Handler. The manipulation of the argument domain leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

---

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