CVE-2025-30342

An XSS issue was discovered in OpenSlides before 4.2.5. When submitting descriptions such as Moderator Notes or Agenda Topics, an editor is shown that allows one to format the submitted text. This allows insertion of various HTML elements. When trying to insert a SCRIPT element, it is properly encoded when reflected; however, adding attributes to links is possible, which allows the injection of JavaScript via the onmouseover attribute and others. When a user moves the mouse over such a prepared link, JavaScript is executed in that user's session.
References
Link Resource
https://www.x41-dsec.de/lab/advisories/x41-2025-001-OpenSlides Exploit Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:openslides:openslides:*:*:*:*:*:*:*:*

History

27 Mar 2025, 13:35

Type Values Removed Values Added
References () https://www.x41-dsec.de/lab/advisories/x41-2025-001-OpenSlides - () https://www.x41-dsec.de/lab/advisories/x41-2025-001-OpenSlides - Exploit, Third Party Advisory
CWE CWE-79
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 6.1
CPE cpe:2.3:a:openslides:openslides:*:*:*:*:*:*:*:*
First Time Openslides
Openslides openslides

21 Mar 2025, 06:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-03-21 06:15

Updated : 2025-03-27 13:35


NVD link : CVE-2025-30342

Mitre link : CVE-2025-30342


JSON object : View

Products Affected

openslides

  • openslides
CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')