Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| YesWiki / yeswiki | affected 0 before 4.6.7; unaffected 4.6.7 |
CWE
CWE-79
References
- https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7pv9-pwm8-cwwr
- https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-stored-xss-via-wakka-markdown-image-src-attribute
ADP enrichment
No English description supplied.