CVE-2026-41655

Admidio has Path Traversal in ECard Preview that Allows Reading Arbitrary Server Files Including Database Credentials

• Database credential disclosure: Any authenticated user can read adm_my_files/config.php, exposing database host, name, username, and password. If the database is network-accessible, this enables full database compromise.
• Source code disclosure: Arbitrary PHP files can be read, revealing application logic, internal paths, and potentially other secrets.
• System file disclosure: With sufficient traversal depth (../../../../../etc/passwd), system files can be read, aiding further attacks.
• Low barrier to exploit: Only requires a regular member account, no admin privileges needed.

Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files. Typical impact: unauthorized file read or write outside the intended directory.

CVE-2026-41655 has a CVSS score of 6.5 (Medium). The vector is network-reachable, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (5.0.9); upgrading removes the vulnerable code path.

Kodem intelligence

Add filename validation to ecard_preview.php before passing the template name to getEcardTemplate(), matching the validation already present in ecard_send.php:

// In modules/photos/ecard_preview.php, add BEFORE line 48:
$postTemplateName = admFuncVariableIsValid(
    $formValues, 'ecard_template', 'file', array('requireValue' => true)
);
$ecardDataToParse = $funcClass->getEcardTemplate($postTemplateName);

Alternatively, add select box value validation to FormPresenter::validate() to verify that submitted select box values match one of the predefined options, which would protect all select boxes across the application:

// In src/UI/Presenter/FormPresenter.php, inside the switch statement in validate():
case 'select':
    if (isset($element['values']) && !array_key_exists($fieldValues[$element['id']], $element['values'])) {
        throw new Exception('SYS_FIELD_INVALID_INPUT', array($element['label']));
    }
    break;

1. What is CVE-2026-41655? CVE-2026-41655 is a medium-severity path traversal vulnerability in admidio/admidio (composer), affecting versions <= 5.0.8. It is fixed in 5.0.9. Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files.
2. How severe is CVE-2026-41655? CVE-2026-41655 has a CVSS score of 6.5 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which versions of admidio/admidio are affected by CVE-2026-41655? admidio/admidio (composer) versions <= 5.0.8 is affected.
4. Is there a fix for CVE-2026-41655? Yes. CVE-2026-41655 is fixed in 5.0.9. Upgrade to this version or later.
5. Is CVE-2026-41655 exploitable, and should I be worried? Whether CVE-2026-41655 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2026-41655 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2026-41655? Upgrade admidio/admidio to 5.0.9 or later.