CVE-2026-58654

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Source
https://cve.org/CVERecord?id=CVE-2026-58654
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58654.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-58654
Aliases
  • GHSA-xc64-vh46-vph6
Published
2026-07-08T13:49:08.711Z
Modified
2026-07-15T01:49:11.675695129Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Grav - Arbitrary File Upload via Avatar Endpoint
Details

The Grav API plugin (getgrav/grav-plugin-api) 1.0.0 contains an unrestricted file upload vulnerability in the avatar upload endpoint (/api/v1/users/user/avatar). The endpoint validates only the client-declared MIME type (getClientMediaType) beginning with 'image/' and does not inspect the actual file content or restrict the resulting extension, allowing an authenticated user to store arbitrary content — including PHP code, SVG with embedded JavaScript, and polyglot payloads — under user/accounts/avatars/ with predictable filenames. Direct HTTP access to the stored files is blocked by .htaccess (returns 403), but the files persist on disk and could lead to remote code execution or stored XSS in the presence of a path traversal flaw or server misconfiguration. Fixed in 1.0.1.

Database specific 
{
    "cwe_ids": [
        "CWE-434"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58654.json",
    "cna_assigner": "VulnCheck"
}
References

Affected packages

Git / github.com/getgrav/grav

Affected ranges

Type
GIT
Repo
https://github.com/getgrav/grav
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
2bb23efa7c54abcf6466a4f1326ee71d2bf2675d
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.0.1"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

0.*
0.8.0
0.9.0
0.9.10
0.9.11
0.9.12
0.9.13
0.9.14
0.9.15
0.9.16
0.9.17
0.9.18
0.9.19
0.9.2
0.9.20
0.9.21
0.9.22
0.9.23
0.9.24
0.9.25
0.9.26
0.9.27
0.9.28
0.9.29
0.9.3
0.9.30
0.9.31
0.9.32
0.9.33
0.9.34
0.9.35
0.9.36
0.9.37
0.9.38
0.9.39
0.9.4
0.9.40
0.9.41
0.9.42
0.9.43
0.9.44
0.9.45
0.9.5
0.9.6
0.9.7
0.9.8
0.9.9
1.*
1.0.0
1.0.0-rc.1
1.0.0-rc.2
1.0.0-rc.3
1.0.0-rc.4
1.0.0-rc.5
1.0.0-rc.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58654.json"