Pleasanter — security advisory

{
  "id": "3e9b7cc3a15a11b4437c04c36a833040ff9c5a0c7c10d2b0b2f65878620aad2b",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-113438",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-113438",
    "summary": "Pleasanter provided fails to properly verify passwords in LDAP authentication when processing specially crafted requests under certain configurations. If exploited, an attacker may bypass LDAP authentication by providing only a valid Login ID, without a password. As a result, an attacker may view, alter or delete information stored in the product with the privilege of the account used to log in.",
    "evidence": "cve:CVE-2026-113438",
    "products": [
      {
        "name": {
          "value": "Pleasanter",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-113438",
      "aliases": [
        "CVE-2026-113438"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV3_0": {
            "version": "3.0",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
          },
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        },
        {
          "format": "CVSS",
          "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:L/VI:L/VA:N/SC:N/SI:N/SA:N"
          },
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "Implem Inc.",
          "product": "Pleasanter",
          "versions": [
            {
              "status": "affected",
              "version": "1.1.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "1.5.9.0"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-26T14:35:18.988Z",
      "provider": "cve",
      "references": [
        "https://pleasanter.org/news/vulnerability-update-20261023/",
        "https://jvn.jp/en/jp/JVN82312317/"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-113438",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-26T13:28:11.014441Z"
                  }
                }
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-26T14:35:18.988Z"
            }
          }
        ],
        "cna": {
          "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
          "shortName": "jpcert",
          "dateUpdated": "2026-10-26T08:59:05.476Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-113438",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 311586,
  "published_at": "2026-10-26T08:59:05.476+00:00"
}