Vulnerability Intelligence Report
YesWiki 4.2.0 before 4.7.0 Stored XSS via Comment Raw-HTML Syntax
CVE-2026-116206
YesWiki from 4.2.0 before 4.7.0 contains a stored cross-site scripting vulnerability that allows authenticated users to inject script into comment bodies using the wakka raw-HTML syntax. Attackers can post comments via the /api/comments endpoint that render unescaped through the Twig raw filter, executing JavaScript in administrators' and visitors' sessions.
Cross-Site Scripting (XSS)
No Active Exploit Signals
CVSS Base Score
5.3
MEDIUM
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-79 ↗Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| YesWiki | yeswiki | 4.2.0 < 4.7.0 (affected), 4.7.0 (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Vulnerability Class
Cross-Site Scripting (XSS)
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | VulnCheck · Bug Bounty Provider · USA |
| Reserved | 2026-10-25T12:27:58 |
| Published | 2026-10-25T13:20:36 |
| Patch Date | 2026-10-09 |
| Last Updated | 2026-10-25T13:20:36 |
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