CVE-2026-97723

Stored XSS in ka9q_ubersdr chat message rendering

Published Sep 25, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
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

Vendor Solution

Upgrade to version 0.1.58 or later.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Madpsy
Madpsy ka9q Ubersdr
Vendors & Products Madpsy
Madpsy ka9q Ubersdr
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Stored XSS in ka9q_ubersdr chat message rendering
Type Values Removed Values Added
Description 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.
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 25, 2026, 1:50 PM
Reserved
Sep 25, 2026, 1:53 AM
Status
Deferred
Published
Sep 25, 2026, 2:16 AM
Modified
Sep 30, 2026, 5:32 PM