CVE-2026-8739 (GCVE-0-2026-8739)
Vulnerability from cvelistv5
Published
2026-05-17 07:45
Modified
2026-05-18 20:09
CWE
  • CWE-321 - Use of Hard-coded Cryptographic Key
  • CWE-320 - Key Management Error
Summary
A vulnerability was detected in Sanluan PublicCMS 5.202506.d. The affected element is the function getSignKey of the file publiccms-core/src/main/java/com/publiccms/logic/component/config/SafeConfigComponent.java. The manipulation of the argument privatefile_key results in use of hard-coded cryptographic key . The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
References
https://vuldb.com/vuln/364327 vdb-entry, technical-description
https://vuldb.com/vuln/364327/cti signature, permissions-required
https://vuldb.com/submit/809917 third-party-advisory
https://vulnplus-note.wetolink.com/share/PCVUlOncmwTC exploit
Impacted products
Vendor Product Version
Sanluan PublicCMS Version: 5.202506.d
    cpe:2.3:a:publiccms:publiccms:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-8739",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-18T20:08:32.296671Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-18T20:09:22.101Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:publiccms:publiccms:*:*:*:*:*:*:*:*"
          ],
          "product": "PublicCMS",
          "vendor": "Sanluan",
          "versions": [
            {
              "status": "affected",
              "version": "5.202506.d"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "vulnplusbot (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was detected in Sanluan PublicCMS 5.202506.d. The affected element is the function getSignKey of the file publiccms-core/src/main/java/com/publiccms/logic/component/config/SafeConfigComponent.java. The manipulation of the argument privatefile_key results in use of hard-coded cryptographic key\r . The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 5,
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-321",
              "description": "Use of Hard-coded Cryptographic Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-320",
              "description": "Key Management Error",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-17T07:45:12.075Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-364327 | Sanluan PublicCMS SafeConfigComponent.java getSignKey hard-coded key",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/364327"
        },
        {
          "name": "VDB-364327 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/364327/cti"
        },
        {
          "name": "Submit #809917 | PublicCMS V5.202506.d Anonymous Private File Download",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/809917"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://vulnplus-note.wetolink.com/share/PCVUlOncmwTC"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-05-16T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-05-16T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-05-16T12:41:41.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Sanluan PublicCMS SafeConfigComponent.java getSignKey hard-coded key"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-8739",
    "datePublished": "2026-05-17T07:45:12.075Z",
    "dateReserved": "2026-05-16T10:36:27.832Z",
    "dateUpdated": "2026-05-18T20:09:22.101Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-8739\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-18T20:08:32.296671Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-18T20:09:02.437Z\"}}], \"cna\": {\"title\": \"Sanluan PublicCMS SafeConfigComponent.java getSignKey hard-coded key\", \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"vulnplusbot (VulDB User)\"}, {\"lang\": \"en\", \"type\": \"coordinator\", \"value\": \"VulDB CNA Team\"}], \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 6.9, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P\"}}, {\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R\"}}, {\"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R\"}}, {\"cvssV2_0\": {\"version\": \"2.0\", \"baseScore\": 5, \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR\"}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:publiccms:publiccms:*:*:*:*:*:*:*:*\"], \"vendor\": \"Sanluan\", \"product\": \"PublicCMS\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.202506.d\"}]}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-05-16T00:00:00.000Z\", \"value\": \"Advisory disclosed\"}, {\"lang\": \"en\", \"time\": \"2026-05-16T02:00:00.000Z\", \"value\": \"VulDB entry created\"}, {\"lang\": \"en\", \"time\": \"2026-05-16T12:41:41.000Z\", \"value\": \"VulDB entry last update\"}], \"references\": [{\"url\": \"https://vuldb.com/vuln/364327\", \"name\": \"VDB-364327 | Sanluan PublicCMS SafeConfigComponent.java getSignKey hard-coded key\", \"tags\": [\"vdb-entry\", \"technical-description\"]}, {\"url\": \"https://vuldb.com/vuln/364327/cti\", \"name\": \"VDB-364327 | CTI Indicators (IOB, IOC, TTP, IOA)\", \"tags\": [\"signature\", \"permissions-required\"]}, {\"url\": \"https://vuldb.com/submit/809917\", \"name\": \"Submit #809917 | PublicCMS V5.202506.d Anonymous Private File Download\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://vulnplus-note.wetolink.com/share/PCVUlOncmwTC\", \"tags\": [\"exploit\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability was detected in Sanluan PublicCMS 5.202506.d. The affected element is the function getSignKey of the file publiccms-core/src/main/java/com/publiccms/logic/component/config/SafeConfigComponent.java. The manipulation of the argument privatefile_key results in use of hard-coded cryptographic key\\r . The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-321\", \"description\": \"Use of Hard-coded Cryptographic Key\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-320\", \"description\": \"Key Management Error\"}]}], \"providerMetadata\": {\"orgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"shortName\": \"VulDB\", \"dateUpdated\": \"2026-05-17T07:45:12.075Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-8739\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-18T20:09:22.101Z\", \"dateReserved\": \"2026-05-16T10:36:27.832Z\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"datePublished\": \"2026-05-17T07:45:12.075Z\", \"assignerShortName\": \"VulDB\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…