CVE-2020-15179

HTML Injection in ScratchSig

State
Published
Severity
8.0 High
Published
Sep 15, 2020
Updated
Aug 4, 2024
Reserved
Jun 25, 2020

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.18.0 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:HGitHub_M

Weaknesses

  • CWE-79 {"CWE-79":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}

Affected Products

ProductVersions
wiki-scratchsigInternationalScratchWiki
  • < 1.0.1Affected

References

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