github - ghsa-88cv-g9gq-h6pq

GHSA-88CV-G9GQ-H6PQ

Vulnerability from github – Published: 2025-12-04 21:31 – Updated: 2025-12-04 21:31

Details

Cross-site scripting (XSS) vulnerability in a reachable files_pdfviewer example directory in Nextcloud with versions before 22.2.10.33, 23.0.12.29, 24.0.12.28, 25.0.13.23, 26.0.13.20, 27.1.11.20, 28.0.14.11, 29.0.16.8, 30.0.17, 31.0.10, and 32.0.1 allows attackers to execute arbitrary JavaScript in the context of a user's browser via a crafted PDF file to viewer.html. This issue is related to CVE-2024-4367, but the root cause of this Nextcloud issue is that the product exposes executable example code on a same-origin basis.

Severity ?

6.4 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-59788"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-749"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-04T19:16:04Z",
    "severity": "MODERATE"
  },
  "details": "Cross-site scripting (XSS) vulnerability in a reachable files_pdfviewer example directory in Nextcloud with versions before 22.2.10.33, 23.0.12.29, 24.0.12.28, 25.0.13.23, 26.0.13.20, 27.1.11.20, 28.0.14.11, 29.0.16.8, 30.0.17, 31.0.10, and 32.0.1 allows attackers to execute arbitrary JavaScript in the context of a user\u0027s browser via a crafted PDF file to viewer.html. This issue is related to CVE-2024-4367, but the root cause of this Nextcloud issue is that the product exposes executable example code on a same-origin basis.",
  "id": "GHSA-88cv-g9gq-h6pq",
  "modified": "2025-12-04T21:31:04Z",
  "published": "2025-12-04T21:31:04Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-24wp-p865-7j4r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59788"
    },
    {
      "type": "WEB",
      "url": "https://nextcloud.com"
    },
    {
      "type": "WEB",
      "url": "https://www.redteam-pentesting.de/en/advisories/rt-sa-2025-003"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-59788 (GCVE-0-2025-59788)

Vulnerability from cvelistv5 – Published: 2025-12-04 00:00 – Updated: 2025-12-04 19:02

Summary

Severity ?

6.4 (Medium)


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

CWE

CWE-749 - Exposed Dangerous Method or Function

Assigner

mitre

References

URL

Tags

	https://nextcloud.com
	https://www.redteam-pentesting.de/en/advisories/r…
	https://github.com/nextcloud/security-advisories/…

Impacted products

	Vendor	Product	Version
	Nextcloud	Nextcloud	Affected: 0 , < 22.2.10.33 (custom) Affected: 23 , < 23.0.12.29 (custom) Affected: 24 , < 24.0.12.28 (custom) Affected: 25 , < 25.0.13.23 (custom) Affected: 26 , < 26.0.13.20 (custom) Affected: 27 , < 27.1.11.20 (custom) Affected: 28 , < 28.0.14.11 (custom) Affected: 29 , < 29.0.16.8 (custom) Affected: 30 , < 30.0.17 (custom) Affected: 31 , < 31.0.10 (custom) Affected: 32 , < 32.0.1 (custom)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Nextcloud",
          "vendor": "Nextcloud",
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              "versionType": "custom"
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              "status": "affected",
              "version": "23",
              "versionType": "custom"
            },
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              "status": "affected",
              "version": "24",
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            },
            {
              "lessThan": "25.0.13.23",
              "status": "affected",
              "version": "25",
              "versionType": "custom"
            },
            {
              "lessThan": "26.0.13.20",
              "status": "affected",
              "version": "26",
              "versionType": "custom"
            },
            {
              "lessThan": "27.1.11.20",
              "status": "affected",
              "version": "27",
              "versionType": "custom"
            },
            {
              "lessThan": "28.0.14.11",
              "status": "affected",
              "version": "28",
              "versionType": "custom"
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            {
              "lessThan": "29.0.16.8",
              "status": "affected",
              "version": "29",
              "versionType": "custom"
            },
            {
              "lessThan": "30.0.17",
              "status": "affected",
              "version": "30",
              "versionType": "custom"
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            {
              "lessThan": "31.0.10",
              "status": "affected",
              "version": "31",
              "versionType": "custom"
            },
            {
              "lessThan": "32.0.1",
              "status": "affected",
              "version": "32",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
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            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:*",
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        }
      ],
      "metrics": [
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      "references": [
        {
          "url": "https://nextcloud.com"
        },
        {
          "url": "https://www.redteam-pentesting.de/en/advisories/rt-sa-2025-003/"
        },
        {
          "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-24wp-p865-7j4r"
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    "datePublished": "2025-12-04T00:00:00.000Z",
    "dateReserved": "2025-09-19T00:00:00.000Z",
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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-88CV-G9GQ-H6PQ

CVE-2025-59788 (GCVE-0-2025-59788)

Tags

Sightings

Nomenclature