CVE-2026-65693

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Source
https://cve.org/CVERecord?id=CVE-2026-65693
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65693.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-65693
Published
2026-07-24T15:33:35Z
Modified
2026-10-28T02:30:40Z
Severity
  • 8.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Microweber CMS 2.0.20 Server-Side Template Injection via Mail Templates
Details

Microweber CMS through 2.0.20 contains a server-side template injection vulnerability that allows authenticated administrators to achieve arbitrary OS command execution by injecting Twig expressions into mail templates. Attackers can exploit the unsandboxed Twig environment in TwigView::render(), which lacks SandboxExtension or a SecurityPolicy, to inject malicious expressions such as filter('system') into mail template bodies stored unsanitized in the database, causing automatic payload execution on each subsequent application event that triggers a mail dispatch.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-94"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65693.json"
}
References

Affected packages

Git / github.com/microweber/microweber

Affected ranges

Type
GIT
Repo
https://github.com/microweber/microweber
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
51ac7113f29aef8ad51e27837aa45c788aa5c041
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "last_affected": "2.0.20"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        }
    ]
}

Affected versions

1.*
1.0.3
1.0.5-fix1
1.0.6
1.0.7-fix1
1.2.9
v1.*
v1.2.10
v1.2.11
v1.2.3
v1.2.4
v1.2.5
v1.2.6
v1.2.7
v1.2.8
v1.2.9
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v2.*
v2.0.10
v2.0.12
v2.0.18
v2.0.19
v2.0.20
v2.0.3
v2.0.4
v2.0.5
v2.0.6
v2.0.7
v2.0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65693.json"