CVE-2026-53527

Source
https://cve.org/CVERecord?id=CVE-2026-53527
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53527.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-53527
Aliases
  • GHSA-jj4r-587p-r5h5
Published
2026-08-21T21:25:16.330Z
Modified
2026-08-23T03:53:38.980203714Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
LeafWiki Vulnerable to Privilege Escalation via User Self-Service Update
Details

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.

Database specific
{
    "cwe_ids": [
        "CWE-269"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53527.json"
}
References

Affected packages

Git / github.com/perber/leafwiki

Affected ranges

Type
GIT
Repo
https://github.com/perber/leafwiki
Events
Database specific
Show details
{
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ],
    "extracted_events": [
        {
            "introduced": "0.1.0"
        },
        {
            "fixed": "0.10.1"
        },
        {
            "fixed": "0.10.0"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.1.1
v0.1.2
v0.1.3
v0.1.4
v0.10.0
v0.2.0
v0.3.0
v0.3.2
v0.3.3
v0.4.0
v0.4.1
v0.4.10
v0.4.2
v0.4.3
v0.4.4
v0.4.5
v0.4.7
v0.4.8
v0.4.9
v0.5.0
v0.5.1
v0.6.0
v0.7.0
v0.7.1
v0.7.2
v0.7.3
v0.7.4
v0.8.0
v0.8.1
v0.8.2
v0.8.3
v0.8.4
v0.8.5
v0.9.0
v0.9.1
v0.9.2

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53527.json"