CVE-2026-79990

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Source

https://cve.org/CVERecord?id=CVE-2026-79990

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-79990.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-79990

Aliases

CVE-2026-84796
GHSA-3wcr-p33w-528f

Published

2026-09-02T14:19:54Z

Modified

2026-10-28T02:30:52Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

GQL entry mutation `siteId` bypasses schema site scope, enabling cross-site content read/write/delete

Details

Craft CMS GraphQL entry mutation resolvers (saveEntry, deleteEntry) read siteIddirectly from$argumentswithout passing throughArgumentManagerprepareArguments(), which is the function that enforces site-scope filtering via array_intersect against the GraphQL schema’s allowed sites. The query path (ElementResolverprepareElementQuery) correctly calls prepareArguments()`, so queries to unauthorized sites return empty. But mutations bypass this entirely — an attacker with a token scoped to Site A can create, modify, or delete entries in Site B by passing siteId in the mutations argument.

Database specific

{
    "cna_assigner": "Hackrate",
    "cwe_ids": [
        "CWE-639"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79990.json"
}

References

Affected packages

Git / github.com/craftcms/cms

Affected ranges

Type

GIT

Repo

https://github.com/craftcms/cms

Events

Introduced

04755d93f86d07cc183db47db8a0eee106892e30

Fixed

9dece66d9d35f9f2615f5f2107c98d2334c71cfc

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "5.0.0-RC1"
                },
                {
                    "fixed": "5.10.11"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "original_tag": "5.10.11",
            "range": [
                {
                    "fixed": "9dece66d9d35f9f2615f5f2107c98d2334c71cfc"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-79990.json"