CVE-2026-72583

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Source
https://cve.org/CVERecord?id=CVE-2026-72583
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72583.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-72583
Published
2026-08-10T10:41:24Z
Modified
2026-10-28T02:31:02Z
Severity
  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
fastschema - Stored Cross-Site Scripting via MIME Type Bypass in File Upload
Details

A stored cross-site scripting (XSS) vulnerability in fastschema through v0.15.1 allows a low-privileged authenticated user to upload an SVG file containing malicious JavaScript by bypassing the MIME type allow-list check.

Database specific 
{
    "cna_assigner":  "TuranSec",
    "cwe_ids":  [
        "CWE-79"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72583.json"
}
References

Affected packages

Git / github.com/fastschema/fastschema

Affected ranges

Type
GIT
Repo
https://github.com/fastschema/fastschema
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
5613d16fe7d144abed0c880abe9f4c49897cf1f5
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "0.15.1"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "0.15.1"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Affected versions

v0.*
v0.0.1
v0.0.2
v0.0.3
v0.0.4
v0.0.5
v0.0.6
v0.0.7
v0.1.0
v0.1.1
v0.1.2
v0.1.3
v0.10.0
v0.10.1
v0.10.2
v0.10.3
v0.10.4
v0.10.5
v0.10.6
v0.10.7
v0.10.8
v0.10.9
v0.11.0
v0.11.1
v0.12.0
v0.13.0
v0.13.1
v0.14.0
v0.15.0
v0.15.1
v0.2.0
v0.3.0
v0.3.1
v0.4.0
v0.5.0
v0.5.1
v0.6.0
v0.6.1
v0.6.2
v0.6.3
v0.6.4
v0.6.5
v0.7.0
v0.7.1
v0.7.2
v0.7.3
v0.7.4
v0.7.5
v0.7.6
v0.7.7
v0.7.8
v0.7.9
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-2026-72583.json"