Vulnerability-Lookup

CVE-2025-8266 (GCVE-0-2025-8266)

Vulnerability from cvelistv5 – Published: 2025-07-28 08:32 – Updated: 2025-07-28 16:59

Shadowserver Previdian

Title

yanyutao0402 ChanCMS collect.js getArticle deserialization

Summary

A vulnerability has been found in yanyutao0402 ChanCMS up to 3.1.2 and classified as critical. Affected by this vulnerability is the function getArticle of the file app/modules/cms/controller/collect.js. The manipulation of the argument targetUrl leads to deserialization. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.1.3 is able to address this issue. It is recommended to upgrade the affected component.

Severity

5.3 (Medium)


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

6.3 (Medium)


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

6.3 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-07-28 16:58 UTC

CWE

CWE-502 - Deserialization
CWE-20 - Improper Input Validation

Assigner

VulDB CNA under the mitre root

CNA scorecard B 83/100 over 3794 records in the last 180 days details

References

5 references

URL	Tags
https://vuldb.com/?id.317857	vdb-entrytechnical-description
https://vuldb.com/?ctiid.317857	signaturepermissions-required
https://vuldb.com/?submit.622170	third-party-advisory
https://gitee.com/yanyutao0402/ChanCMS/issues/ICLP61	exploitissue-tracking
https://gitee.com/yanyutao0402/ChanCMS/releases/t…	patch

Impacted products

1 product

Vendor	Product	Version	CPE status
yanyutao0402	ChanCMS	Affected: 3.1.0 Affected: 3.1.1 Affected: 3.1.2 Unaffected: 3.1.3	guessed

Credits

ZAST.AI (VulDB User)

Shadowserver

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: 2c4c75f7-3f0b-4027-8908-4f9eb4803260

Vulnerability ID: CVE-2025-8266

Status: Confirmed

Status Updated: 2026-11-04 00:00 UTC

Exploited: Yes

Characteristics

Severity: 63.0

Timestamps

First Seen: 2026-10-18

Asserted: 2026-10-18

Last Seen: 2026-11-04

Scope

Asset Exposure: ['internet-facing']

Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details

1D	2
Iot	no
Feed	Shadowserver Foundation honeypot/exploited-vulnerabilities
Type	http-scan
Class	cms
7D Avg	1
Vendor	ChanCMS
30D Avg	0
90D Avg	0
Product	ChanCMS
Cisa Kev	no
Connections	49
Observation Date	2026-11-04
Vulnerability Class	CVSS
Vulnerability Score	6.3
Vulnerability Severity	Medium

References

Created: 2026-10-21 09:13 UTC | Updated: 2026-11-06 01:01 UTC

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: 4082c469-8ada-486e-9471-6a2a90ee87e3

Vulnerability ID: CVE-2025-8266

Status: Confirmed

Status Updated: 2026-10-18 00:00 UTC

Exploited: Yes

Timestamps

First Seen: 2026-10-18

Asserted: 2026-10-18

Scope

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details

Feed	Previdian (previdian.com)
Title	yanyutao0402 ChanCMS collect.js getArticle deserialization
Cve Id	CVE-2025-8266
Vendor	yanyutao0402
Ghsa Id	None
Product	ChanCMS
Added Date	2026-10-18T00:00:00.000Z
Cvss Score	5.3
Epss Score	0.01087
Previous Ids
Cvss Severity	MEDIUM
Virtual Patch	False
Cvss Estimated	False
Epss Percentile	0.64753
Used In Malware	unknown
Vulnerability Id	CVE-2025-8266
Ahead Of Cisa Kev	None
Not Yet In Cisa Kev	True

References

Created: 2026-10-19 11:00 UTC | Updated: 2026-10-19 11:00 UTC

Show details on NVD website

JSON

To clipboard

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                "baseScore": 6.3,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
                "version": "3.1"
              }
            },
            {
              "cvssV3_0": {
                "baseScore": 6.3,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
                "version": "3.0"
              }
            },
            {
              "cvssV2_0": {
                "baseScore": 6.5,
                "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C",
                "version": "2.0"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-502",
                  "description": "Deserialization",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-20",
                  "description": "Improper Input Validation",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-07-28T08:32:15.139Z",
            "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
            "shortName": "VulDB"
          },
          "references": [
            {
              "name": "VDB-317857 | yanyutao0402 ChanCMS collect.js getArticle deserialization",
              "tags": [
                "vdb-entry",
                "technical-description"
              ],
              "url": "https://vuldb.com/?id.317857"
            },
            {
              "name": "VDB-317857 | CTI Indicators (IOB, IOC, IOA)",
              "tags": [
                "signature",
                "permissions-required"
              ],
              "url": "https://vuldb.com/?ctiid.317857"
            },
            {
              "name": "Submit #622170 | yanyutao0402 https://gitee.com/yanyutao0402/ChanCMS  \u003c3.1.3 Remote Code Execution",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/?submit.622170"
            },
            {
              "tags": [
                "exploit",
                "issue-tracking"
              ],
              "url": "https://gitee.com/yanyutao0402/ChanCMS/issues/ICLP61"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://gitee.com/yanyutao0402/ChanCMS/releases/tag/V3.1.3"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2025-07-27T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2025-07-27T02:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2025-07-27T11:50:26.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "yanyutao0402 ChanCMS collect.js getArticle deserialization"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2025-8266",
        "datePublished": "2025-07-28T08:32:15.139Z",
        "dateReserved": "2025-07-27T09:45:19.857Z",
        "dateUpdated": "2025-07-28T16:59:30.165Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}

FKIE_CVE-2025-8266

Vulnerability from fkie_nvd - Published: 2025-07-28 09:15 - Updated: 2026-06-17 10:06

Shadowserver Previdian

Severity

6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Summary

References

URL	Tags
cna@vuldb.com	https://gitee.com/yanyutao0402/ChanCMS/issues/ICLP61	Exploit, Issue Tracking, Vendor Advisory
cna@vuldb.com	https://gitee.com/yanyutao0402/ChanCMS/releases/tag/V3.1.3	Release Notes
cna@vuldb.com	https://vuldb.com/?ctiid.317857	Permissions Required, VDB Entry
cna@vuldb.com	https://vuldb.com/?id.317857	Third Party Advisory, VDB Entry
cna@vuldb.com	https://vuldb.com/?submit.622170	Third Party Advisory, VDB Entry

Impacted products

	Vendor	Product	Version
	chancms	chancms	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "ChanCMS",
          "vendor": "yanyutao0402",
          "versions": [
            {
              "status": "affected",
              "version": "3.1.0"
            },
            {
              "status": "affected",
              "version": "3.1.1"
            },
            {
              "status": "affected",
              "version": "3.1.2"
            },
            {
              "status": "unaffected",
              "version": "3.1.3"
            }
          ]
        }
      ],
      "source": "cna@vuldb.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:chancms:chancms:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "411EA525-FE0B-4320-99AE-94E3195DA90C",
              "versionEndExcluding": "3.1.3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability has been found in yanyutao0402 ChanCMS up to 3.1.2 and classified as critical. Affected by this vulnerability is the function getArticle of the file app/modules/cms/controller/collect.js. The manipulation of the argument targetUrl leads to deserialization. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.1.3 is able to address this issue. It is recommended to upgrade the affected component."
    },
    {
      "lang": "es",
      "value": "Se ha detectado una vulnerabilidad en yanyutao0402 ChanCMS hasta la versi\u00f3n 3.1.2, clasificada como cr\u00edtica. Esta vulnerabilidad afecta a la funci\u00f3n getArticle del archivo app/modules/cms/controller/collect.js. La manipulaci\u00f3n del argumento targetUrl provoca la deserializaci\u00f3n. El ataque puede ejecutarse en remoto. Se ha hecho p\u00fablico el exploit y puede que sea utilizado. Actualizar a la versi\u00f3n 3.1.3 puede solucionar este problema. Se recomienda actualizar el componente afectado."
    }
  ],
  "id": "CVE-2025-8266",
  "lastModified": "2026-06-17T10:06:38.553",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "cna@vuldb.com",
        "type": "Secondary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.4,
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 2.1,
          "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": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-8266",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-07-28T16:58:27.329831Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-07-28T09:15:35.117",
  "references": [
    {
      "source": "cna@vuldb.com",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "url": "https://gitee.com/yanyutao0402/ChanCMS/issues/ICLP61"
    },
    {
      "source": "cna@vuldb.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://gitee.com/yanyutao0402/ChanCMS/releases/tag/V3.1.3"
    },
    {
      "source": "cna@vuldb.com",
      "tags": [
        "Permissions Required",
        "VDB Entry"
      ],
      "url": "https://vuldb.com/?ctiid.317857"
    },
    {
      "source": "cna@vuldb.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://vuldb.com/?id.317857"
    },
    {
      "source": "cna@vuldb.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://vuldb.com/?submit.622170"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}

GHSA-PG2F-HFWM-M7G5

Vulnerability from github – Published: 2025-07-28 09:31 – Updated: 2025-07-28 09:31

Details

Severity

6.3 (Medium)


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

2.1 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-8266"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-28T09:15:35Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability has been found in yanyutao0402 ChanCMS up to 3.1.2 and classified as critical. Affected by this vulnerability is the function getArticle of the file app/modules/cms/controller/collect.js. The manipulation of the argument targetUrl leads to deserialization. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.1.3 is able to address this issue. It is recommended to upgrade the affected component.",
  "id": "GHSA-pg2f-hfwm-m7g5",
  "modified": "2025-07-28T09:31:17Z",
  "published": "2025-07-28T09:31:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-8266"
    },
    {
      "type": "WEB",
      "url": "https://gitee.com/yanyutao0402/ChanCMS/issues/ICLP61"
    },
    {
      "type": "WEB",
      "url": "https://gitee.com/yanyutao0402/ChanCMS/releases/tag/V3.1.3"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.317857"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.317857"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?submit.622170"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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"
    }
  ]
}

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

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

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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.
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

CVE-2025-8266 (GCVE-0-2025-8266)

Shadowserver

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Characteristics

Timestamps

Scope

Evidence

Honeypot In The Wild Attempts Confidence: 70% Source: shadowserver

Details

References

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Timestamps

Scope

Evidence

Public Report Successful Exploitation Confidence: 70% Source: previdian

Details

References

FKIE_CVE-2025-8266

GHSA-PG2F-HFWM-M7G5

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour