CVE-2020-15179 HIGH

CVE-2020-15179: HTML Injection in ScratchSig

Vendor Internationalscratchwiki
Product wiki-scratchsig
Weakness CWE-79 · XSS
Published September 15, 2020
Last update August 4, 2024
View on NVD All CVEs

CVSS base score

8.0/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

The ScratchSig extension for MediaWiki before version 1.0.1 allows stored Cross-Site Scripting. Using <script> tag inside <scratchsig> tag, attackers with edit permission can execute scripts on visitors' browser. With MediaWiki JavaScript API, this can potentially lead to privilege escalation and/or account takeover. This has been patched in release 1.0.1. This has already been deployed to all Scratch Wikis. No workarounds exist other than disabling the extension completely.

Key dates

02Disclosure timeline

September 15, 2020 CVE published
August 4, 2024 Record updated