Vulnerability-Lookup

GHSA-3672-84C4-CX98

Vulnerability from github – Published: 2026-09-07 15:33 – Updated: 2026-09-07 15:33

Details

A weakness has been identified in light0011 cms c774dce31c6df0055568a8d5c53d964d99be199d/f72cf46f601efb2a0618c3814cc2f61380b38930. This affects an unknown part of the file App/Home/Model/UserModel.class.php of the component Cookie Helper. Executing a manipulation of the argument Username can lead to improper authentication. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The project was informed of the problem early through an issue report but has not responded yet.

Severity

7.3 (High)


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

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-86306"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-07T13:20:39Z",
    "severity": "MODERATE"
  },
  "details": "A weakness has been identified in light0011 cms c774dce31c6df0055568a8d5c53d964d99be199d/f72cf46f601efb2a0618c3814cc2f61380b38930. This affects an unknown part of the file App/Home/Model/UserModel.class.php of the component Cookie Helper. Executing a manipulation of the argument Username can lead to improper authentication. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The project was informed of the problem early through an issue report but has not responded yet.",
  "id": "GHSA-3672-84c4-cx98",
  "modified": "2026-09-07T15:33:52Z",
  "published": "2026-09-07T15:33:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86306"
    },
    {
      "type": "WEB",
      "url": "https://github.com/light0011/cms/issues/11"
    },
    {
      "type": "WEB",
      "url": "https://github.com/light0011/cms"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-86306"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/894817"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/399479"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/399479/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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"
    }
  ]
}

CVE-2026-86306 (GCVE-0-2026-86306)

Vulnerability from cvelistv5 – Published: 2026-09-07 13:00 – Updated: 2026-09-08 15:06

Title

light0011 cms Cookie Helper UserModel.class.php improper authentication

Summary

Severity

6.9 (Medium)


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

7.3 (High)


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

7.3 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-08 15:06 UTC

CWE

CWE-287 - Improper Authentication

Assigner

VulDB mitre root

References

6 references

URL	Tags
https://vuldb.com/vuln/399479	vdb-entrytechnical-description
https://vuldb.com/vuln/399479/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-86306	third-party-advisory
https://vuldb.com/submit/894817	third-party-advisory
https://github.com/light0011/cms/issues/11	exploitissue-tracking
https://github.com/light0011/cms/	product

Impacted products

1 product

Vendor	Product	Version
light0011	cms	Affected: c774dce31c6df0055568a8d5c53d964d99be199d Affected: f72cf46f601efb2a0618c3814cc2f61380b38930 cpe:2.3:a:light0011:cms::::::::

Credits

404my (VulDB User) VulDB CNA Team

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-86306",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-08T15:06:22.493979Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-08T15:06:29.076Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:light0011:cms:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Cookie Helper"
          ],
          "product": "cms",
          "vendor": "light0011",
          "versions": [
            {
              "status": "affected",
              "version": "c774dce31c6df0055568a8d5c53d964d99be199d"
            },
            {
              "status": "affected",
              "version": "f72cf46f601efb2a0618c3814cc2f61380b38930"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "404my (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A weakness has been identified in light0011 cms c774dce31c6df0055568a8d5c53d964d99be199d/f72cf46f601efb2a0618c3814cc2f61380b38930. This affects an unknown part of the file App/Home/Model/UserModel.class.php of the component Cookie Helper. Executing a manipulation of the argument Username can lead to improper authentication. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The project was informed of the problem early through an issue report but has not responded yet."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 7.5,
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "cweId": "CWE-287",
              "description": "Improper Authentication",
              "lang": "en",
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-07T13:00:07.849Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
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      "references": [
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          "tags": [
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          ],
          "url": "https://vuldb.com/vuln/399479"
        },
        {
          "name": "VDB-399479 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/399479/cti"
        },
        {
          "name": "CVE-2026-86306 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-86306"
        },
        {
          "name": "Submit #894817 | light0011 cms f72cf46f601efb2a0618c3814cc2f61380b38930 Improper Authentication",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/894817"
        },
        {
          "tags": [
            "exploit",
            "issue-tracking"
          ],
          "url": "https://github.com/light0011/cms/issues/11"
        },
        {
          "tags": [
            "product"
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          "url": "https://github.com/light0011/cms/"
        }
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          "time": "2026-09-06T00:00:00.000Z",
          "value": "Advisory disclosed"
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          "lang": "en",
          "time": "2026-09-06T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-09-06T20:21:54.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "light0011 cms Cookie Helper UserModel.class.php improper authentication",
      "x_generator": [
        "VulDB PVTS v202609"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-86306",
    "datePublished": "2026-09-07T13:00:07.849Z",
    "dateReserved": "2026-09-06T18:16:45.239Z",
    "dateUpdated": "2026-09-08T15:06:29.076Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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

GHSA-3672-84C4-CX98

CVE-2026-86306 (GCVE-0-2026-86306)

Tags

Sightings

Nomenclature

Related by attack behaviour