CVE-2026-34213

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Source
https://cve.org/CVERecord?id=CVE-2026-34213
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34213.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-34213
Aliases
  • GHSA-89fp-2hch-j9gp
Published
2026-04-14T21:49:55.380Z
Modified
2026-07-08T08:12:51.016951546Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
Summary
Docmost has cross-page attachment overwrite via flawed attachmentId overwrite validation
Details

Docmost is open-source collaborative wiki and documentation software. Starting in version 0.3.0 and prior to version 0.71.0, improper authorization in Docmost allows a low-privileged authenticated user to overwrite another page's attachment within the same workspace by supplying a victim attachmentId to POST /api/files/upload. This is a remote integrity issue requiring no victim interaction. Version 0.71.0 contains a patch.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34213.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-639"
    ]
}
References

Affected packages

Git / github.com/docmost/docmost

Affected ranges

Type
GIT
Repo
https://github.com/docmost/docmost
Events
Introduced
73ddec4ca7415073d765cc62d100030223936b6c
Fixed
642024ba9d1afcc7c14ad3c34da8495037faeaf1
Database specific 
{
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ],
    "cpe": "cpe:2.3:a:docmost:docmost:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0.3.0"
        },
        {
            "fixed": "0.71.0"
        }
    ]
}

Affected versions

v0.*
v0.10.0
v0.10.1
v0.10.2
v0.20.0
v0.20.1
v0.20.2
v0.20.3
v0.20.4
v0.21.0
v0.22.0
v0.22.1
v0.22.2
v0.23.0
v0.23.1
v0.23.2
v0.24.0
v0.24.1
v0.25.0
v0.25.0-beta.1
v0.25.1
v0.25.2
v0.25.3
v0.3.0
v0.3.1
v0.4.0
v0.4.1
v0.5.0
v0.6.0
v0.6.1
v0.6.2
v0.7.0
v0.70.0
v0.70.1
v0.70.2
v0.70.3
v0.8.0
v0.8.1
v0.8.2
v0.8.3
v0.8.4
v0.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34213.json"