CVE-2026-116202 Details
Description
YesWiki before 4.7.0 contains a stored cross-site scripting vulnerability that allows low-privilege authenticated users to upload unsanitized SVG files through the bazar ImageField class. Attackers can submit a malicious SVG via the image field of the entries API, which is served as image/svg+xml and executes script for users viewing the entry or file.
A stored cross-site scripting vulnerability has been identified in YesWiki versions prior to 4.7.0. This issue allows low-privilege authenticated users to upload unsanitized SVG files through the ImageField class of the bazar. The vulnerability arises because the image field of the entries API accepts SVG files, which are then served as image/svg+xml. When users view the entry or file, the uploaded SVG executes scripts, leading to cross-site scripting.
Users are advised to update to YesWiki version 4.7.0 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 25, 2026CISA-ADP
Assessed Oct 29, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/YesWiki/yeswiki/security/advisories/GHSA-c5q6-7233-3v6g | CISA-ADP | AdvisoryExploitTechnical AnalysisVendor |
| https://github.com/YesWiki/yeswiki/security/advisories/GHSA-c5q6-7233-3v6g | [email protected] | AdvisoryExploitTechnical AnalysisVendor |
| https://www.vulncheck.com/advisories/yeswiki-before-4.7.0-stored-xss-via-imagefield-svg-upload | [email protected] | Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| YesWiki | < 4.7.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 29, 2026 | CVE Modified | CISA-ADP |
| Oct 25, 2026 | New CVE Received | [email protected] |