CVE-2021-43842
- Source
- https://cve.org/CVERecord?id=CVE-2021-43842
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43842.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-43842
- Aliases
-
- GHSA-3qv4-gp35-rgh7
- Published
- 2021-12-20T23:15:29Z
- Modified
- 2026-07-08T06:27:52Z
- Severity
-
- 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
Wiki.js is a wiki app built on Node.js. Wiki.js versions 2.5.257 and earlier are vulnerable to stored cross-site scripting through a SVG file upload. By creating a crafted SVG file, a malicious Wiki.js user may stage a stored cross-site scripting attack. This allows the attacker to execute malicious JavaScript when the SVG is viewed directly by other users. Scripts do not execute when loaded inside a page via normal
<img>tags. Commit 5d3e81496fba1f0fbd64eeb855f30f69a9040718 fixes this vulnerability by adding an optional (enabled by default) SVG sanitization step to all file uploads that match the SVG mime type. As a workaround, disable file upload for all non-trusted users. Wiki.js version 2.5.260 is the first production version to contain a patch. Version 2.5.258 is the first development build to contain a patch and is available only as a Docker image as requarks/wiki:canary-2.5.258. - Database specific
{ "unresolved_ranges": [ { "cpes": [ "cpe:2.3:a:requarks:wiki.js:*:*:*:*:*:*:*:*" ], "extracted_events": [ { "last_affected": "2.5.257" } ], "source": "CPE_RANGE", "vendor_product": "requarks:wiki.js" } ] }- References