Vulnerability-Lookup

CVE-2026-9357 (GCVE-0-2026-9357)

Vulnerability from cvelistv5 – Published: 2026-05-24 05:15 – Updated: 2026-05-26 14:24

Title

vBulletin Login cross site scripting

Summary

A vulnerability was found in vBulletin 6.x. This impacts an unknown function of the component Login. Performing a manipulation results in cross site scripting. It is possible to initiate the attack remotely. The exploit has been made public and could be used. VulDB is withholding an extended redistribution of exploit details to prevent simplified exploitation. The vendor was contacted early about this disclosure but did not respond in any way.

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

3.5 (Low)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

3.5 (Low)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-79 - Cross Site Scripting
CWE-94 - Code Injection

Assigner

VulDB

References

3 references

URL	Tags
https://vuldb.com/vuln/365320	vdb-entry
https://vuldb.com/vuln/365320/cti	signaturepermissions-required
https://vuldb.com/submit/813052	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
n/a	vBulletin	Affected: 6.* cpe:2.3:a:vbulletin:vbulletin::::::::

Credits

chor4o (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2026-9357",
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                "role": "CISA Coordinator",
                "timestamp": "2026-05-26T14:23:54.997627Z",
                "version": "2.0.3"
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            "cpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:*"
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          "modules": [
            "Login"
          ],
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          "vendor": "n/a",
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          "type": "coordinator",
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          "url": "https://vuldb.com/vuln/365320/cti"
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          "name": "Submit #813052 | Cross Site Scripting no f\u00f3rum vBulletin 6.xx Vbulletin 6.x.x Cross Site Scripting",
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    "vulnrichment": {
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}

FKIE_CVE-2026-9357

Vulnerability from fkie_nvd - Published: 2026-05-24 06:16 - Updated: 2026-06-17 11:05

Severity

3.5 (Low) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

Summary

References

	URL	Tags
	cna@vuldb.com	https://vuldb.com/submit/813052
	cna@vuldb.com	https://vuldb.com/vuln/365320
	cna@vuldb.com	https://vuldb.com/vuln/365320/cti

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:*"
          ],
          "modules": [
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          ],
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          "vendor": "n/a",
          "versions": [
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    }
  ],
  "id": "CVE-2026-9357",
  "lastModified": "2026-06-17T11:05:05.517",
  "metrics": {
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          "availabilityImpact": "NONE",
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          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
          "version": "2.0"
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        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
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        "type": "Secondary",
        "userInteractionRequired": false
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    "cvssMetricV31": [
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          "integrityImpact": "LOW",
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          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
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    ],
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        "cvssData": {
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          "Recovery": "NOT_DEFINED",
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          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.0,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
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    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/365320/cti"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        },
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}

GHSA-8RJW-7777-4JWX

Vulnerability from github – Published: 2026-05-26 13:30 – Updated: 2026-05-26 13:30

Details

Severity

3.5 (Low)


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

2.0 (Low)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2026-9357"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-24T06:16:37Z",
    "severity": "LOW"
  },
  "details": "A vulnerability was found in vBulletin 6.x. This impacts an unknown function of the component Login. Performing a manipulation results in cross site scripting. It is possible to initiate the attack remotely. The exploit has been made public and could be used. VulDB is withholding an extended redistribution of exploit details to prevent simplified exploitation. The vendor was contacted early about this disclosure but did not respond in any way.",
  "id": "GHSA-8rjw-7777-4jwx",
  "modified": "2026-05-26T13:30:30Z",
  "published": "2026-05-26T13:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9357"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/813052"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/365320"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/365320/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

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.

Action not permitted

CVE-2026-9357 (GCVE-0-2026-9357)

FKIE_CVE-2026-9357

GHSA-8RJW-7777-4JWX

Tags

Sightings

Nomenclature