Quick answers
- Is CVE-2026-104472 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-104472 being exploited in the wild.
- How severe is CVE-2026-104472?
- High severity, with a CVSS score of 7.5, published 2 October 2026.
- Which products and versions are affected?
- YesWiki before 4.6.7.
- Is there a fix for CVE-2026-104472?
- Yes: fixed in 4.6.7. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-104472 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-104472?
- Check whether you run YesWiki at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 4.6.7
Technical details
The attachment download handler in tools/attach/handlers/page/download.php fails to verify page read ACLs before streaming files. While normal page rendering checks authorization via HasAccess('read'), the download handler delegates directly to the attachment library's doDownload() method, which reads the requested file from $_GET and streams it without authorization checks. An attacker who knows or guesses a private page tag and attachment filename can retrieve the file over the network without authentication or user interaction.
Affected products
- YesWiki YesWiki before 4.6.7
Timeline
- 2026-09-01: disclosed
- 2026-10-02: advisory