CVE-2026-104466
YesWiki before 4.6.7 contains a stored cross-site scripting vulnerability in formatters/wakka.php…
- Risk score
- 44/100
- CVSS
- 5.4 v3.1
- Exploit chance (30 days)
- 0.2%
- Published
- 2 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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…
- Affected
- See advisory
- Fix
- Upgrade the product to 4.6.7 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 5.4 medium
- On your watchlist: php
References
Original 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.
Last activity 2 Oct 2026. Patch Forecast updates every hour.