medium5.4
CVE-2026-104466
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 inje…
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| YesWiki | before 4.6.7 |
Versions were read from the advisory text. No structured product data has been published for this record yet.