Vulnerability-Lookup

CVE-2026-80233 (GCVE-0-2026-80233)

Vulnerability from cvelistv5 – Published: 2026-08-26 08:19 – Updated: 2026-08-26 13:58

Title

CAYIN Technology｜CAYIN CMS-WS/CMS-SE/SMP - Arbitrary File Upload

Summary

CAYIN CMS-WS, CMS-SE, and SMP series products developed by CAYIN Technology have an Arbitrary File Upload vulnerability. Privileged remote attackers can upload and execute web shells backdoors, thereby enabling arbitrary code execution on the server.

Severity

7.2 (High)


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

8.6 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-26 13:58 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

twcert mitre root

References

2 references

URL	Tags
https://www.twcert.org.tw/tw/cp-132-11129-4a040-1.html	third-party-advisory
https://www.twcert.org.tw/en/cp-139-11135-189f7-2.html	third-party-advisory

Impacted products

3 products

Vendor	Product	Version	CPE status
CAYIN Technology	CAYIN CMS-WS	Affected: 0 , ≤ 1.0.25336 (custom)	guessed
CAYIN Technology	CAYIN CMS-SE	Affected: 0 , ≤ 11.0.25336 (custom)	guessed
CAYIN Technology	CAYIN SMP	Affected: 0 , ≤ 4.0.25336 (custom)	guessed

Date Public

2026-08-26 08:03

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-80233

Vulnerability from fkie_nvd - Published: 2026-08-26 09:16 - Updated: 2026-08-26 16:40

Severity

7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	twcert@cert.org.tw	https://www.twcert.org.tw/en/cp-139-11135-189f7-2.html
	twcert@cert.org.tw	https://www.twcert.org.tw/tw/cp-132-11129-4a040-1.html

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "twcert@cert.org.tw",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-80233",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-26T13:58:14.324869Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-26T09:16:48.717",
  "references": [
    {
      "source": "twcert@cert.org.tw",
      "url": "https://www.twcert.org.tw/en/cp-139-11135-189f7-2.html"
    },
    {
      "source": "twcert@cert.org.tw",
      "url": "https://www.twcert.org.tw/tw/cp-132-11129-4a040-1.html"
    }
  ],
  "sourceIdentifier": "twcert@cert.org.tw",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ],
      "source": "twcert@cert.org.tw",
      "type": "Secondary"
    }
  ]
}

GHSA-6C9P-6J83-QG5R

Vulnerability from github – Published: 2026-08-26 18:31 – Updated: 2026-08-26 18:31

Details

Severity

7.2 (High)


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

8.6 (High)


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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-80233"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-434"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-26T09:16:48Z",
    "severity": "HIGH"
  },
  "details": "CAYIN CMS-WS, CMS-SE, and SMP series products developed by CAYIN Technology have an Arbitrary File Upload vulnerability. Privileged remote attackers can upload and execute web shells backdoors, thereby enabling arbitrary code execution on the server.",
  "id": "GHSA-6c9p-6j83-qg5r",
  "modified": "2026-08-26T18:31:54Z",
  "published": "2026-08-26T18:31:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80233"
    },
    {
      "type": "WEB",
      "url": "https://www.twcert.org.tw/en/cp-139-11135-189f7-2.html"
    },
    {
      "type": "WEB",
      "url": "https://www.twcert.org.tw/tw/cp-132-11129-4a040-1.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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.
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.

Action not permitted

CVE-2026-80233 (GCVE-0-2026-80233)

FKIE_CVE-2026-80233

GHSA-6C9P-6J83-QG5R

Tags

Sightings

Nomenclature