CVE-2026-39473 (GCVE-0-2026-39473)

Vulnerability from cvelistv5 – Published: 2026-04-08 08:30 – Updated: 2026-04-29 09:52
VLAI
Title
WordPress Simple History plugin <= 5.24.0 - Sensitive Data Exposure vulnerability
Summary
Insertion of Sensitive Information Into Sent Data vulnerability in Pär Thernström Simple History simple-history allows Retrieve Embedded Sensitive Data.This issue affects Simple History: from n/a through <= 5.24.0.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-13 16:36 UTC
CWE
  • CWE-201 - Insertion of Sensitive Information Into Sent Data
Assigner
Patchstack CNA under the mitre root
CNA scorecard C 75/100 over 2924 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Pär Thernström Simple History Affected: 0 , ≤ 5.24.0 (custom)
guessed Create a notification for this product.
Date Public
2026-04-08 10:28
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-39473",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-13T16:36:48.717558Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-13T16:38:55.797Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected",
          "packageName": "simple-history",
          "product": "Simple History",
          "vendor": "P\u00e4r Thernstr\u00f6m",
          "versions": [
            {
              "changes": [
                {
                  "at": "5.24.1",
                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "5.24.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "timomangcut | Patchstack Bug Bounty Program"
        }
      ],
      "datePublic": "2026-04-08T10:28:51.109Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Insertion of Sensitive Information Into Sent Data vulnerability in P\u00e4r Thernstr\u00f6m Simple History simple-history allows Retrieve Embedded Sensitive Data.\u003cp\u003eThis issue affects Simple History: from n/a through \u003c= 5.24.0.\u003c/p\u003e"
            }
          ],
          "value": "Insertion of Sensitive Information Into Sent Data vulnerability in P\u00e4r Thernstr\u00f6m Simple History simple-history allows Retrieve Embedded Sensitive Data.This issue affects Simple History: from n/a through \u003c= 5.24.0."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-37",
          "descriptions": [
            {
              "lang": "en",
              "value": "Retrieve Embedded Sensitive Data"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-201",
              "description": "Insertion of Sensitive Information Into Sent Data",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-29T09:52:01.820Z",
        "orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
        "shortName": "Patchstack"
      },
      "references": [
        {
          "tags": [
            "vdb-entry"
          ],
          "url": "https://patchstack.com/database/Wordpress/Plugin/simple-history/vulnerability/wordpress-simple-history-plugin-5-24-0-sensitive-data-exposure-vulnerability?_s_id=cve"
        }
      ],
      "title": "WordPress Simple History plugin \u003c= 5.24.0 - Sensitive Data Exposure vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
    "assignerShortName": "Patchstack",
    "cveId": "CVE-2026-39473",
    "datePublished": "2026-04-08T08:30:08.855Z",
    "dateReserved": "2026-04-07T10:42:07.235Z",
    "dateUpdated": "2026-04-29T09:52:01.820Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-39473",
      "date": "2026-10-17",
      "epss": "0.0033",
      "percentile": "0.24555"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "collectionURL": "https://wordpress.org/plugins",
                "defaultStatus": "unaffected",
                "packageName": "simple-history",
                "product": "Simple History",
                "vendor": "P\u00e4r Thernstr\u00f6m",
                "versions": [
                  {
                    "changes": [
                      {
                        "at": "5.24.1",
                        "status": "unaffected"
                      }
                    ],
                    "lessThanOrEqual": "5.24.0",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "audit@patchstack.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Insertion of Sensitive Information Into Sent Data vulnerability in P\u00e4r Thernstr\u00f6m Simple History simple-history allows Retrieve Embedded Sensitive Data.This issue affects Simple History: from n/a through \u003c= 5.24.0."
          },
          {
            "lang": "es",
            "value": "Vulnerabilidad de inserci\u00f3n de informaci\u00f3n sensible en datos enviados en P\u00e4r Thernstr\u00f6m Simple History simple-history permite recuperar datos sensibles incrustados. Este problema afecta a Simple History: desde n/a hasta \u003c= 5.24.0."
          }
        ],
        "id": "CVE-2026-39473",
        "lastModified": "2026-07-24T21:10:00.143",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 1.4,
              "source": "audit@patchstack.com",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 1.4,
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-39473",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-13T16:36:48.717558Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-04-08T09:16:22.110",
        "references": [
          {
            "source": "audit@patchstack.com",
            "url": "https://patchstack.com/database/Wordpress/Plugin/simple-history/vulnerability/wordpress-simple-history-plugin-5-24-0-sensitive-data-exposure-vulnerability?_s_id=cve"
          }
        ],
        "sourceIdentifier": "audit@patchstack.com",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-201"
              }
            ],
            "source": "audit@patchstack.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-04-13T19:24:33+00:00",
      "cve": "CVE-2026-39473",
      "id": "CVE-2026-39473",
      "initial_release_date": "2026-04-08T10:28:51.109000+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "WordPress Simple History plugin \u003c= 5.24.0 - Sensitive Data Exposure vulnerability",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39473.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "NETWORK",
                  "availabilityImpact": "NONE",
                  "baseScore": 5.3,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "LOW",
                  "integrityImpact": "NONE",
                  "privilegesRequired": "NONE",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-39473",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-04-13T16:36:48.717558Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-04-13T16:36:42.010Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "collectionURL": "https://wordpress.org/plugins",
              "defaultStatus": "unaffected",
              "packageName": "simple-history",
              "product": "Simple History",
              "vendor": "P\u00e4r Thernstr\u00f6m",
              "versions": [
                {
                  "changes": [
                    {
                      "at": "5.24.1",
                      "status": "unaffected"
                    }
                  ],
                  "lessThanOrEqual": "5.24.0",
                  "status": "affected",
                  "version": "0",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "timomangcut | Patchstack Bug Bounty Program"
            }
          ],
          "datePublic": "2026-04-08T10:28:51.109Z",
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "Insertion of Sensitive Information Into Sent Data vulnerability in P\u00e4r Thernstr\u00f6m Simple History simple-history allows Retrieve Embedded Sensitive Data.\u003cp\u003eThis issue affects Simple History: from n/a through \u003c= 5.24.0.\u003c/p\u003e"
                }
              ],
              "value": "Insertion of Sensitive Information Into Sent Data vulnerability in P\u00e4r Thernstr\u00f6m Simple History simple-history allows Retrieve Embedded Sensitive Data.This issue affects Simple History: from n/a through \u003c= 5.24.0."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-37",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "Retrieve Embedded Sensitive Data"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-201",
                  "description": "Insertion of Sensitive Information Into Sent Data",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-04-08T08:30:08.855Z",
            "orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
            "shortName": "Patchstack"
          },
          "references": [
            {
              "tags": [
                "vdb-entry"
              ],
              "url": "https://patchstack.com/database/Wordpress/Plugin/simple-history/vulnerability/wordpress-simple-history-plugin-5-24-0-sensitive-data-exposure-vulnerability?_s_id=cve"
            }
          ],
          "title": "WordPress Simple History plugin \u003c= 5.24.0 - Sensitive Data Exposure vulnerability"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
        "assignerShortName": "Patchstack",
        "cveId": "CVE-2026-39473",
        "datePublished": "2026-04-08T08:30:08.855Z",
        "dateReserved": "2026-04-07T10:42:07.235Z",
        "dateUpdated": "2026-04-13T16:38:55.797Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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

JSON
Events included in the timeline

Loading timeline…


    Loading…

    Loading…

    Loading…

    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.