Vulnerability-Lookup

GHSA-GPM8-99Q9-V8FC

Vulnerability from github – Published: 2026-10-16 06:30 – Updated: 2026-10-16 06:30

Details

The 10Web Booster – Website speed optimization, Cache & Page Speed optimizer plugin for WordPress is vulnerable to a limited file write via path traversal in versions up to, and including, 2.34.5 This is due to the OptimizerWebPageCache::get_cache_file_dir() function concatenating raw, unsanitized $_GET parameter names and values into the on-disk cache path, and the cache_content() sink calling mkdir() and file_put_contents() on the result with no realpath containment check — unlike the sibling delete_page_cache(), which does perform one. This makes it possible for unauthenticated attackers to create arbitrary directories (mode 0777, recursively) outside the cache root and write a cached page into them. The write is LIMITED: the filename is always 'source.html', so the extension is fixed, and the content is the rendered page buffer rather than attacker-supplied data. PHP files cannot be written and code execution is not possible; the demonstrated impact is cache poisoning and arbitrary directory creation.

Severity

7.5 (High)


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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-103896"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-16T06:17:03Z",
    "severity": "HIGH"
  },
  "details": "The 10Web Booster \u2013 Website speed optimization, Cache \u0026 Page Speed optimizer plugin for WordPress is vulnerable to a limited file write via path traversal in versions up to, and including, 2.34.5 This is due to the OptimizerWebPageCache::get_cache_file_dir() function concatenating raw, unsanitized $_GET parameter names and values into the on-disk cache path, and the cache_content() sink calling mkdir() and file_put_contents() on the result with no realpath containment check \u2014 unlike the sibling delete_page_cache(), which does perform one. This makes it possible for unauthenticated attackers to create arbitrary directories (mode 0777, recursively) outside the cache root and write a cached page into them. The write is LIMITED: the filename is always \u0027source.html\u0027, so the extension is fixed, and the content is the rendered page buffer rather than attacker-supplied data. PHP files cannot be written and code execution is not possible; the demonstrated impact is cache poisoning and arbitrary directory creation.",
  "id": "GHSA-gpm8-99q9-v8fc",
  "modified": "2026-10-16T06:30:27Z",
  "published": "2026-10-16T06:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-103896"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/tenweb-speed-optimizer/tags/2.34.5/includes/WebPageCache/OptimizerWebPageCache.php#L190"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/tenweb-speed-optimizer/tags/2.34.5/includes/WebPageCache/OptimizerWebPageCache.php#L205"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/tenweb-speed-optimizer/tags/2.34.5/includes/WebPageCache/OptimizerWebPageCache.php#L312"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/tenweb-speed-optimizer/tags/2.34.5/includes/WebPageCache/OptimizerWebPageValidations.php#L299"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/tenweb-speed-optimizer/tags/2.34.8"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/83e672e7-2483-46e9-ae16-a9e7ccc4bcb8?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-103896 (GCVE-0-2026-103896)

Vulnerability from cvelistv5 – Published: 2026-10-16 05:30 – Updated: 2026-10-16 15:09

Title

10Web Booster <= 2.34.5 - Unauthenticated Limited File Write / Cache Poisoning via Query-string Parameter Traversal in Page-Cache Path

Summary

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-16 14:55 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

Wordfence CNA under the mitre root

CNA scorecard C 65/100 over 2260 records in the last 180 days details

References

6 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://plugins.trac.wordpress.org/browser/tenweb…
https://plugins.trac.wordpress.org/browser/tenweb…
https://plugins.trac.wordpress.org/browser/tenweb…
https://plugins.trac.wordpress.org/browser/tenweb…
https://plugins.trac.wordpress.org/browser/tenweb…

Impacted products

1 product

Vendor	Product	Version
10web	10Web Booster – Website speed optimization, Cache & Page Speed optimizer	Affected: 0 , ≤ 2.34.5 (semver)

Credits

Swayam Bhageria

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-103896",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-16T14:55:48.533241Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-16T15:09:39.142Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "10Web Booster \u2013 Website speed optimization, Cache \u0026 Page Speed optimizer",
          "vendor": "10web",
          "versions": [
            {
              "lessThanOrEqual": "2.34.5",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Swayam Bhageria"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The 10Web Booster \u2013 Website speed optimization, Cache \u0026 Page Speed optimizer plugin for WordPress is vulnerable to a limited file write via path traversal in versions up to, and including, 2.34.5 This is due to the OptimizerWebPageCache::get_cache_file_dir() function concatenating raw, unsanitized $_GET parameter names and values into the on-disk cache path, and the cache_content() sink calling mkdir() and file_put_contents() on the result with no realpath containment check \u2014 unlike the sibling delete_page_cache(), which does perform one. This makes it possible for unauthenticated attackers to create arbitrary directories (mode 0777, recursively) outside the cache root and write a cached page into them. The write is LIMITED: the filename is always \u0027source.html\u0027, so the extension is fixed, and the content is the rendered page buffer rather than attacker-supplied data. PHP files cannot be written and code execution is not possible; the demonstrated impact is cache poisoning and arbitrary directory creation."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-22",
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      "providerMetadata": {
        "dateUpdated": "2026-10-16T05:30:24.365Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/83e672e7-2483-46e9-ae16-a9e7ccc4bcb8?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/tenweb-speed-optimizer/tags/2.34.5/includes/WebPageCache/OptimizerWebPageCache.php#L205"
        },
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        },
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          "url": "https://plugins.trac.wordpress.org/browser/tenweb-speed-optimizer/tags/2.34.5/includes/WebPageCache/OptimizerWebPageCache.php#L312"
        },
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        },
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        }
      ],
      "timeline": [
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          "lang": "en",
          "time": "2026-10-01T14:06:02.000Z",
          "value": "Vendor Notified"
        },
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          "lang": "en",
          "time": "2026-10-15T17:03:48.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "10Web Booster \u003c= 2.34.5 - Unauthenticated Limited File Write / Cache Poisoning via Query-string Parameter Traversal in Page-Cache Path"
    }
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  "cveMetadata": {
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    "datePublished": "2026-10-16T05:30:24.365Z",
    "dateReserved": "2026-10-01T13:50:51.051Z",
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    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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}

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.

Vulnerability timeline

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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.

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