---
id: CVE-2026-97723
title: >-
  madpsy ka9q_ubersdr before 0.1.58 has a stored cross-site scripting (XSS)
  vulnerability in the chat message rendering functionality
summary: >-
  madpsy ka9q_ubersdr before 0.1.58 has a stored cross-site scripting (XSS)
  vulnerability in the chat message rendering functionality. User-controlled
  URLs in chat messages were insufficiently neutralized before being converted
  into HTML l…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: madpsy
product: ka9q_ubersdr
affected:
  - ka9q_ubersdr < 0.1.58
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T14:17:26.060'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-97723'
references:
  - url: >-
      https://github.com/madpsy/ka9q_ubersdr/commit/6aa858da1c030cae11b94c7d6c72322adb9ec60d
    label: cve@mitre.org
  - url: 'https://github.com/madpsy/ka9q_ubersdr/pull/114'
    label: cve@mitre.org
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-25T13:50:40.419100Z'
epss: 0.00209
epssPercentile: 0.09903
ingestedAt: '2026-09-25T02:58:13.433Z'
---

## Overview

madpsy ka9q_ubersdr before 0.1.58 has a stored cross-site scripting (XSS) vulnerability in the chat message rendering functionality. User-controlled URLs in chat messages were insufficiently neutralized before being converted into HTML links. Quotation characters could break out of the generated href attribute and introduce attacker-controlled HTML attributes, allowing arbitrary JavaScript to execute in the browser of another user when the stored chat message was rendered. No click on the malicious link was required.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.