CVE-2026-77136

Source
https://cve.org/CVERecord?id=CVE-2026-77136
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77136.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-77136
Published
2026-08-25T09:00:39.526Z
Modified
2026-08-28T11:30:34.004425452Z
Severity
  • 9.5 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator
Summary
Server-Side Template Injection in extension "powermail" (powermail)
Details

The extension passes the raw value of a form field configured as "This field contains the name of the sender" directly into a Fluid View as template source, without any sanitization, and renders it. An anonymous, unauthenticated user can submit Fluid template syntax in that field to execute arbitrary Fluid ViewHelpers leading to disclosure of server configuration, environment variables and application source, and potentially remote code execution. Exploitation requires only that a form field is configured as the sender_name field, a common and default-adjacent Powermail configuration. No authentication or user interaction beyond a normal form submission is required. This vulnerability is reported to be actively exploited in the wild.

Database specific
{
    "cna_assigner": "TYPO3",
    "cwe_ids": [
        "CWE-1336"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77136.json"
}
References

Affected packages

Git / github.com/in2code-de/powermail

Affected ranges

Type
GIT
Repo
https://github.com/in2code-de/powermail
Events
Database specific
Show details
{
    "extracted_events": [
        {
            "introduced": "13.0.0"
        },
        {
            "fixed": "13.2.1"
        },
        {
            "introduced": "11.0.0"
        },
        {
            "fixed": "12.6.1"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "10.9.3"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

1.*
1.3.10
1.3.11
1.3.12
1.3.6
1.3.7
1.3.8
1.4.1
1.4.14
1.5.1
1.5.3
1.5.5
1.5.6
1.5.7
1.6.4
1.6.5
1.6.6
10.*
10.7.3
10.7.4
10.8.0
10.8.1
10.8.2
10.9.0
10.9.1
10.9.2
12.*
12.0.3
12.1.0
12.1.1
12.2.0
12.2.1
12.3.0
12.3.1
12.3.2
12.3.3
12.3.4
12.3.5
12.4.0
12.4.1
12.4.2
12.4.3
12.4.4
12.5.0
12.5.1
12.5.2
12.5.3
12.5.4
12.6.0
13.*
13.0.0
13.0.1
13.0.2
13.0.3
13.0.4
13.1.0
2.*
2.0.0
2.0.1
2.0.10
2.0.11
2.0.12
2.0.13
2.0.15
2.0.2
2.0.3
2.0.4
2.0.5
2.0.6
2.0.8
2.0.9
2.1.0
2.1.6
2.2.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-77136.json"