Cross-Site Scripting Vulnerability in LeafWiki by Perber
CVE-2026-53529

4.8MEDIUM

Key Information:

Vendor

Perber

Status
Leafwiki
Vendor
CVE Published:
21 August 2026

What is CVE-2026-53529?

LeafWiki, a self-hosted wiki solution, contains a vulnerability where page titles returned by the search API could be executed as raw HTML in the user's browser. This allows users with editor or administrator permissions to introduce malicious HTML/JavaScript payloads into page titles. When other users perform a search, these payloads can execute, compromising user security. The impact varies based on deployment settings; if public access is enabled, unauthenticated visitors may be affected. In scenarios with authenticated access only, logged-in users are at risk of cross-user XSS attacks through manipulated search results. The issue has been resolved in version 0.10.2 by ensuring that user-generated titles are not processed as raw HTML, thus providing enhanced security while maintaining search functionality.

Affected Version(s)

leafwiki < 0.10.2

References

https://github.com/perber/leafwiki/security/advisories/GH...
x_refsource_CONFIRM

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.