YesWiki before 4.6.7 contains a stored cross-site scripting vulnerability in formatters/wakka.php that allows users who can edit pages or post comments to inject event handlers by placing quotes in markdown image URLs. Attackers can store a crafted markdown image whose src breaks out of the attribute to add an onerror handler, executing JavaScript in viewers' browsers, including administrators.
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Affected Vendors & Products
Advisories
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Fixes
Solution
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Workaround
No workaround given by the vendor.
References
History
Fri, 02 Oct 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | YesWiki before 4.6.7 contains a stored cross-site scripting vulnerability in formatters/wakka.php that allows users who can edit pages or post comments to inject event handlers by placing quotes in markdown image URLs. Attackers can store a crafted markdown image whose src breaks out of the attribute to add an onerror handler, executing JavaScript in viewers' browsers, including administrators. | |
| Title | YesWiki before 4.6.7 Stored XSS via Wakka Markdown Image src Attribute | |
| First Time appeared |
Yeswiki
Yeswiki yeswiki |
|
| Weaknesses | CWE-79 | |
| CPEs | cpe:2.3:a:yeswiki:yeswiki:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Yeswiki
Yeswiki yeswiki |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-02T11:38:32.854Z
Reserved: 2026-10-02T00:55:11.982Z
Link: CVE-2026-104466
Vulnrichment
No data.
NVD
Status : Deferred
Published: 2026-10-02T12:17:19.217
Modified: 2026-10-02T12:17:19.333
Link: CVE-2026-104466
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses