CVE-2026-53527: falha de alta gravidade em perber leafwiki
LeafWiki Vulnerable to Privilege Escalation via User Self-Service Update
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.8epss 0.4%
LeafWiki is a self-hosted wiki. Versions 0.1.0 through 0.10.0 have a privilege escalation vulnerability in the user update API. An authenticated user could update their own account role and escalate privileges from a regular user, such as `viewer`, to `admin`. Exploitation requires a valid authenticated LeafWiki user account. Instances without public registration and with only trusted users are at lower practical risk. Users should update to version 0.10.1 or greater. Until a patch is available, operators should restrict account creation and ensure that only trusted users have accounts on affected LeafWiki instances. If possible, access to the user update API should be restricted to trusted users or administrators only.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
perber · leafwikiCVEs relacionadas — perber leafwiki
No mesmo produto, das mais perigosas para as menos.
CVE-2026-80189HIGHLeafWiki 0.10.0 through 0.12.0 Uncontrolled Resource Consumption via Unbounded ZIP ExtractionEPSS 0.5%CVE-2026-53528HIGHFileWiki has path traversal in RenameAsset via unsanitized oldFilename parameterEPSS 0.5%CVE-2026-53529MEDIUMLeafWiki vulnerable to stored XSS via search-result title (highlight() returns raw title into dangerouslySetInnerHTML)EPSS 0.4%