CVE-2026-39940 (GCVE-0-2026-39940)
Vulnerability from cvelistv5
Published
2026-04-13 16:34
Modified
2026-04-16 13:26
CWE
  • CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Summary
ChurchCRM is an open-source church management system. Prior to 7.0.0, it was possible in many places across the ChurchCRM application to create a link that, when visited by an authenticated user, would redirect them to any URL chosen by an attacker if they clicked 'Cancel' button on the page. For this write-up the DonatedItemEditor.php will be used as an example, however wherever all instances of 'linkBack' should be assessed. This vulnerability is fixed in 7.0.0.
Impacted products
Vendor Product Version
ChurchCRM CRM Version: < 7.0.0
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-39940",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-16T13:18:19.387037Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-16T13:26:41.668Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "CRM",
          "vendor": "ChurchCRM",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 7.0.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "ChurchCRM is an open-source church management system. Prior to 7.0.0, it was possible in many places across the ChurchCRM application to create a link that, when visited by an authenticated user, would redirect them to any URL chosen by an attacker if they clicked \u0027Cancel\u0027 button on the page. For this write-up the DonatedItemEditor.php will be used as an example, however wherever all instances of \u0027linkBack\u0027 should be assessed. This vulnerability is fixed in 7.0.0."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-601",
              "description": "CWE-601: URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-13T16:34:58.495Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/ChurchCRM/CRM/security/advisories/GHSA-5g52-rvjf-6wwf",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/ChurchCRM/CRM/security/advisories/GHSA-5g52-rvjf-6wwf"
        },
        {
          "name": "https://github.com/ChurchCRM/CRM/security/advisories/GHSA-v3hj-33xf-qx47",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ChurchCRM/CRM/security/advisories/GHSA-v3hj-33xf-qx47"
        }
      ],
      "source": {
        "advisory": "GHSA-5g52-rvjf-6wwf",
        "discovery": "UNKNOWN"
      },
      "title": "ChurchCRM has an Open Redirect via the \u2018linkBack\u2019 URL Parameter in DonatedItemEditor.php"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-39940",
    "datePublished": "2026-04-13T16:34:58.495Z",
    "dateReserved": "2026-04-07T22:40:33.820Z",
    "dateUpdated": "2026-04-16T13:26:41.668Z",
    "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-2026-39940\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-16T13:18:19.387037Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-16T13:26:32.207Z\"}}], \"cna\": {\"title\": \"ChurchCRM has an Open Redirect via the \\u2018linkBack\\u2019 URL Parameter in DonatedItemEditor.php\", \"source\": {\"advisory\": \"GHSA-5g52-rvjf-6wwf\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 5.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"LOW\", \"subIntegrityImpact\": \"LOW\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"LOW\", \"vulnConfidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"ChurchCRM\", \"product\": \"CRM\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 7.0.0\"}]}], \"references\": [{\"url\": \"https://github.com/ChurchCRM/CRM/security/advisories/GHSA-5g52-rvjf-6wwf\", \"name\": \"https://github.com/ChurchCRM/CRM/security/advisories/GHSA-5g52-rvjf-6wwf\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/ChurchCRM/CRM/security/advisories/GHSA-v3hj-33xf-qx47\", \"name\": \"https://github.com/ChurchCRM/CRM/security/advisories/GHSA-v3hj-33xf-qx47\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"ChurchCRM is an open-source church management system. Prior to 7.0.0, it was possible in many places across the ChurchCRM application to create a link that, when visited by an authenticated user, would redirect them to any URL chosen by an attacker if they clicked \u0027Cancel\u0027 button on the page. For this write-up the DonatedItemEditor.php will be used as an example, however wherever all instances of \u0027linkBack\u0027 should be assessed. This vulnerability is fixed in 7.0.0.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-601\", \"description\": \"CWE-601: URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-04-13T16:34:58.495Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-39940\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-16T13:26:41.668Z\", \"dateReserved\": \"2026-04-07T22:40:33.820Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-04-13T16:34:58.495Z\", \"assignerShortName\": \"GitHub_M\"}",
      "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…