Quick answers
- Is CVE-2026-116822 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-116822 being exploited in the wild.
- How severe is CVE-2026-116822?
- Medium severity, with a CVSS score of 5.3, published 27 October 2026.
- Which products and versions are affected?
- YesWiki before 4.7.0.
- Is there a fix for CVE-2026-116822?
- Yes: fixed in 4.7.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-116822 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-116822?
- 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: 4.7.0
Technical details
BazarListeAction accepts a template parameter from the HTTP GET query string and applies only htmlspecialchars() sanitization, which does not filter path traversal sequences (../) or validate template names. The unsanitized parameter flows into Twig's template renderer with the @bazar namespace prefix. Although Twig's validateName() function prevents escape from the @bazar namespace (filesystem access is blocked), an attacker can select any template within that namespace without authentication or user interaction.
Affected products
- YesWiki YesWiki before 4.7.0
Timeline
- 2026-10-12: disclosed
- 2026-10-12: patched: 4.7.0 released