CVE-2026-53528High· 8.8▾ Twilight

LeafWiki is a self-hosted wiki

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score49/ 100 · Moderate

impact 48.4 · likelihood 0.1 · exploitation 0

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Proof of concept

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Published

Aug 21, 2026

Updated

Oct 12, 2026

CVSS

8.8

Vendor

perber

Product

leafwiki

CWE

CWE-23

Depth score

49 · Moderate

EPSS

0.55% · p46

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

decided 2026-08-26

Exploitation: none
Automatable: no
Technical impact: total

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Sep 9.

0.3% → 0.5%▲ 0.2%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

4 events · 52 days

Aug 21, 2026Published
Disclosed via NVD
Sep 9, 2026EPSS first tracked
0.3%
Sep 25, 2026EPSS peak
0.3% → 0.5%
Oct 12, 2026Record revised
Last analysed / modified upstream

perber CWE-23 #nvd #cve.org

Affected

leafwiki >= 0.3.0, < 0.10.1

Full technical detail▾

Overview

LeafWiki is a self-hosted wiki. Versions 0.3.0 through 0.10.0 have a path traversal vulnerability in LeafWiki’s asset rename functionality. An authenticated user with editor permissions could move files that are accessible to the LeafWiki server process into a page’s asset directory. This could allow sensitive local files, such as the application database, to become downloadable as page assets. Users should update to version 0.10.1 or greater. As an additional mitigation, operators should ensure that the LeafWiki process runs with the least privileges necessary and does not have filesystem access to sensitive files outside the application’s required directories. Until a patch is applied, operators may reduce risk by restricting editor access to trusted users only and by limiting the filesystem permissions of the LeafWiki process.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

[email protected] — https://github.com/perber/leafwiki/security/advisories/GHSA-g2wp-jm5c-jqfj

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org

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