XSS in Yeswiki
CVE-2026-116202
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/YesWiki/yeswiki/security/advisories/GHSA-c5q6-7233-3v6g (vendor-advisory)
- www.vulncheck.com/advisories/yeswiki-before-4.7.0-stored-xss-via-imagefield-svg… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-116202?
- CVE-2026-116202 is a medium-severity vulnerability in Yeswiki, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-25.
- How severe is CVE-2026-116202?
- Medium severity. CVSS v3 base score is 5.4 out of 10.