Vulnerability-Lookup

CVE-2025-66026 (GCVE-0-2025-66026)

Vulnerability from cvelistv5 – Published: 2025-11-26 02:01 – Updated: 2025-11-26 15:14

Title

REDAXO is Vulnerable to Reflected XSS in Mediapool Info Banner via args[types]

Summary

REDAXO is a PHP-based CMS. Prior to version 5.20.1, a reflected Cross-Site Scripting (XSS) vulnerability exists in the Mediapool view where the request parameter args[types] is rendered into an info banner without HTML-escaping. This allows arbitrary JavaScript execution in the backend context when an authenticated user visits a crafted link while logged in. This issue has been patched in version 5.20.1.

Severity

6.1 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-11-26 15:14 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/redaxo/redaxo/security/advisor…	x_refsource_CONFIRM
https://github.com/redaxo/redaxo/commit/589290623…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
redaxo	redaxo	Affected: < 5.20.1	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2025-66026

Vulnerability from fkie_nvd - Published: 2025-11-26 03:15 - Updated: 2026-06-17 09:56

Severity

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

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/redaxo/redaxo/commit/58929062312cf03e344ab04067a365e6b6ee66aa	Patch
security-advisories@github.com	https://github.com/redaxo/redaxo/security/advisories/GHSA-x6vr-q3vf-vqgq	Exploit, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/redaxo/redaxo/security/advisories/GHSA-x6vr-q3vf-vqgq	Exploit, Vendor Advisory

Impacted products

	Vendor	Product	Version
	redaxo	redaxo	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "redaxo",
          "vendor": "redaxo",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 5.20.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
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              "matchCriteriaId": "9937DEF0-5450-4350-ADC0-95D0CC89958B",
              "versionEndExcluding": "5.20.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "REDAXO is a PHP-based CMS. Prior to version 5.20.1, a reflected Cross-Site Scripting (XSS) vulnerability exists in the Mediapool view where the request parameter args[types] is rendered into an info banner without HTML-escaping. This allows arbitrary JavaScript execution in the backend context when an authenticated user visits a crafted link while logged in. This issue has been patched in version 5.20.1."
    }
  ],
  "id": "CVE-2025-66026",
  "lastModified": "2026-06-17T09:56:11.943",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
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          "baseScore": 6.1,
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          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
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        "type": "Secondary"
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GHSA-X6VR-Q3VF-VQGQ

Vulnerability from github – Published: 2025-11-25 23:53 – Updated: 2025-11-27 09:01

Summary

REDAXO CMS is vulnerable to Reflected XSS in Mediapool Info Banner via args[types]

Details

Summary

A reflected Cross-Site Scripting (XSS) vulnerability exists in the Mediapool view where the request parameter args[types] is rendered into an info banner without HTML-escaping. This allows arbitrary JavaScript execution in the backend context when an authenticated user visits a crafted link while logged in.

Details

Control Flow:

redaxo/src/addons/mediapool/pages/index.php reads args via rex_request('args', 'array') and passes them through as $argUrl to media.list.php.
redaxo/src/addons/mediapool/pages/media.list.php injects $argUrl['args']['types'] into an HTML string without escaping:

if (!empty($argUrl['args']['types'])) {
    echo rex_view::info(rex_i18n::msg('pool_file_filter') . ' <code>' . $argUrl['args']['types'] . '</code>');
}

PoC

Log into the REDAXO backend.
While authenticated, open a crafted URL like: <host>/index.php?page=mediapool/media&args[types]="><img+src%3Dx+onerror%3Dalert%28document.domain%29>
The info banner displays the unescaped value and activates the injected onerror handler, which opens an alert pop-up.

Impact

Arbitrary JavaScript execution in the backend, enabling theft of session cookies, CSRF tokens, or other sensitive data, and allowing an attacker to perform any administrative actions on behalf of the affected user.

Severity

6.1 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "redaxo/source"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.20.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-66026"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-11-25T23:53:04Z",
    "nvd_published_at": "2025-11-26T03:15:58Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nA reflected Cross-Site Scripting (XSS) vulnerability exists in the Mediapool view where the request parameter `args[types]` is rendered into an info banner without HTML-escaping. This allows arbitrary JavaScript execution in the backend context when an authenticated user visits a crafted link while logged in.\n\n### Details\n\nControl Flow:\n\n1. `redaxo/src/addons/mediapool/pages/index.php` reads args via `rex_request(\u0027args\u0027, \u0027array\u0027)` and passes them through as `$argUrl` to `media.list.php`.\n2. `redaxo/src/addons/mediapool/pages/media.list.php` injects `$argUrl[\u0027args\u0027][\u0027types\u0027]` into an HTML string without escaping:\n\n```\nif (!empty($argUrl[\u0027args\u0027][\u0027types\u0027])) {\n    echo rex_view::info(rex_i18n::msg(\u0027pool_file_filter\u0027) . \u0027 \u003ccode\u003e\u0027 . $argUrl[\u0027args\u0027][\u0027types\u0027] . \u0027\u003c/code\u003e\u0027);\n}\n```\n\n### PoC\n\n1. Log into the REDAXO backend.\n2. While authenticated, open a crafted URL like: `\u003chost\u003e/index.php?page=mediapool/media\u0026args[types]=\"\u003e\u003cimg+src%3Dx+onerror%3Dalert%28document.domain%29\u003e`\n4. The info banner displays the unescaped value and activates the injected onerror handler, which opens an alert pop-up.\n\n### Impact\nArbitrary JavaScript execution in the backend, enabling theft of session cookies, CSRF tokens, or other sensitive data, and allowing an attacker to perform any administrative actions on behalf of the affected user.",
  "id": "GHSA-x6vr-q3vf-vqgq",
  "modified": "2025-11-27T09:01:42Z",
  "published": "2025-11-25T23:53:04Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/redaxo/redaxo/security/advisories/GHSA-x6vr-q3vf-vqgq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66026"
    },
    {
      "type": "WEB",
      "url": "https://github.com/redaxo/redaxo/commit/58929062312cf03e344ab04067a365e6b6ee66aa"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/redaxo/redaxo"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "REDAXO CMS is vulnerable to Reflected XSS in Mediapool Info Banner via args[types]"
}

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.
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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2025-66026 (GCVE-0-2025-66026)

FKIE_CVE-2025-66026

GHSA-X6VR-Q3VF-VQGQ

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