CVE-2026-40500

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Source
https://cve.org/CVERecord?id=CVE-2026-40500
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40500.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-40500
Aliases
Published
2026-04-15T21:25:53.214Z
Modified
2026-07-09T03:51:32.622051993Z
Severity
  • 6.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N CVSS Calculator
Summary
ProcessWire CMS SSRF via Add Module From URL
Details

ProcessWire CMS version 3.0.255 and prior contain a server-side request forgery vulnerability in the admin panel's 'Add Module From URL' feature that allows authenticated administrators to supply arbitrary URLs to the module download parameter, causing the server to issue outbound HTTP requests to attacker-controlled internal or external hosts. Attackers can exploit differentiable error messages returned by the server to perform reliable internal network port scanning, host enumeration across RFC-1918 ranges, and potential access to cloud instance metadata endpoints.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40500.json",
    "cwe_ids": [
        "CWE-918"
    ],
    "isDisputed": true,
    "cna_assigner": "VulnCheck"
}
References

Affected packages

Git / github.com/processwire/processwire

Affected ranges

Type
GIT
Repo
https://github.com/processwire/processwire
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
4bf3a6d09cfd2c5d3f8a1c195d768889434ba0b1
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "3.0.255"
        }
    ]
}

Affected versions

3.*
3.0.123
3.0.148
3.0.164
3.0.165
3.0.184
3.0.200
3.0.210
3.0.226
3.0.227
3.0.244
3.0.246
3.0.255
3.0.34
3.0.35
3.0.36
3.0.39
3.0.41
3.0.42
3.0.61
3.0.62
3.0.96
3.0.98

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40500.json"