PT-2020-14251 · Wikimedia+1 · Mediawiki+1

Apple502J + 2 · Published 2020-09-15 · Updated 2020-09-22 · CVE-2020-15179

Positive Technologies (AI Summary)

CVSS v3.1

9.0

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions ScratchSig extension for MediaWiki versions prior to 1.0.1

Description The issue allows stored Cross-Site Scripting, enabling attackers with edit permission to execute scripts on visitors' browsers by using a

Recommendations For ScratchSig extension for MediaWiki versions prior to 1.0.1, update to version 1.0.1 to resolve the issue. As a temporary workaround, consider disabling the ScratchSig extension completely until the patch is applied.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-15179

GHSA-GP9V-PG9F-VMP6

Affected Products

Mediawiki

Scratchsig Extension

References · 4

• https://osv.dev/vulnerability/CVE-2020-15179 · Vendor Advisory
• https://github.com/InternationalScratchWiki/wiki-scratchsig/commit/4160a39a20eebeb63a59eb7597a91b961eca6388 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2020-15179 · Security Note
• https://github.com/InternationalScratchWiki/wiki-scratchsig/security/advisories/GHSA-gp9v-pg9f-vmp6 · Note