CVE-2026-7567 (GCVE-0-2026-7567)

Vulnerability from cvelistv5 – Published: 2026-05-01 09:26 – Updated: 2026-05-01 14:27
VLAI
Title
Temporary Login <= 1.0.0 - Authentication Bypass to Account Takeover
Summary
The Temporary Login plugin for WordPress is vulnerable to Authentication Bypass in versions up to and including 1.0.0. This is due to improper input validation in the maybe_login_temporary_user() function, which fails to verify that the 'temp-login-token' GET parameter is a scalar string before processing it. When the parameter is supplied as an array, PHP's empty() check is bypassed and sanitize_key() returns an empty string, which is then passed as the meta_value to get_users(). WordPress ignores an empty meta_value and returns all users matching the meta_key '_temporary_login_token', allowing authentication without a valid token. This makes it possible for unauthenticated attackers to authenticate as any active temporary login user by sending a single crafted GET request.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
References
Impacted products
Vendor Product Version
elemntor Temporary Login Affected: 0 , ≤ 1.0.0 (semver)
Create a notification for this product.
Credits
TANG Cheuk Hei
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-7567",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-01T14:26:47.233168Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-01T14:27:42.580Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Temporary Login",
          "vendor": "elemntor",
          "versions": [
            {
              "lessThanOrEqual": "1.0.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "TANG Cheuk Hei"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Temporary Login plugin for WordPress is vulnerable to Authentication Bypass in versions up to and including 1.0.0. This is due to improper input validation in the maybe_login_temporary_user() function, which fails to verify that the \u0027temp-login-token\u0027 GET parameter is a scalar string before processing it. When the parameter is supplied as an array, PHP\u0027s empty() check is bypassed and sanitize_key() returns an empty string, which is then passed as the meta_value to get_users(). WordPress ignores an empty meta_value and returns all users matching the meta_key \u0027_temporary_login_token\u0027, allowing authentication without a valid token. This makes it possible for unauthenticated attackers to authenticate as any active temporary login user by sending a single crafted GET request."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-288",
              "description": "CWE-288 Authentication Bypass Using an Alternate Path or Channel",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-01T09:26:06.824Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/f97c669b-86c1-4873-a050-76972f494099?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/temporary-login/trunk/core/options.php#L157"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/temporary-login/tags/1.0.0/core/options.php#L157"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/temporary-login/trunk/core/admin.php#L135"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/temporary-login/tags/1.0.0/core/admin.php#L135"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/temporary-login/trunk/core/admin.php#L179"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/temporary-login/tags/1.0.0/core/admin.php#L179"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-04-30T20:59:11.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Temporary Login \u003c= 1.0.0 - Authentication Bypass to Account Takeover"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-7567",
    "datePublished": "2026-05-01T09:26:06.824Z",
    "dateReserved": "2026-04-30T20:58:51.799Z",
    "dateUpdated": "2026-05-01T14:27:42.580Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-7567",
      "date": "2026-05-25",
      "epss": "0.00126",
      "percentile": "0.31279"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-7567\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-05-01T10:15:58.080\",\"lastModified\":\"2026-05-01T15:26:24.553\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The Temporary Login plugin for WordPress is vulnerable to Authentication Bypass in versions up to and including 1.0.0. This is due to improper input validation in the maybe_login_temporary_user() function, which fails to verify that the \u0027temp-login-token\u0027 GET parameter is a scalar string before processing it. When the parameter is supplied as an array, PHP\u0027s empty() check is bypassed and sanitize_key() returns an empty string, which is then passed as the meta_value to get_users(). WordPress ignores an empty meta_value and returns all users matching the meta_key \u0027_temporary_login_token\u0027, allowing authentication without a valid token. This makes it possible for unauthenticated attackers to authenticate as any active temporary login user by sending a single crafted GET request.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-288\"}]}],\"references\":[{\"url\":\"https://plugins.trac.wordpress.org/browser/temporary-login/tags/1.0.0/core/admin.php#L135\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/temporary-login/tags/1.0.0/core/admin.php#L179\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/temporary-login/tags/1.0.0/core/options.php#L157\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/temporary-login/trunk/core/admin.php#L135\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/temporary-login/trunk/core/admin.php#L179\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/temporary-login/trunk/core/options.php#L157\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/f97c669b-86c1-4873-a050-76972f494099?source=cve\",\"source\":\"security@wordfence.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-7567\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-01T14:26:47.233168Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-01T14:27:19.845Z\"}}], \"cna\": {\"title\": \"Temporary Login \u003c= 1.0.0 - Authentication Bypass to Account Takeover\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"TANG Cheuk Hei\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\"}}], \"affected\": [{\"vendor\": \"elemntor\", \"product\": \"Temporary Login\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"1.0.0\"}], \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-04-30T20:59:11.000Z\", \"value\": \"Disclosed\"}], \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/f97c669b-86c1-4873-a050-76972f494099?source=cve\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/temporary-login/trunk/core/options.php#L157\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/temporary-login/tags/1.0.0/core/options.php#L157\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/temporary-login/trunk/core/admin.php#L135\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/temporary-login/tags/1.0.0/core/admin.php#L135\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/temporary-login/trunk/core/admin.php#L179\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/temporary-login/tags/1.0.0/core/admin.php#L179\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The Temporary Login plugin for WordPress is vulnerable to Authentication Bypass in versions up to and including 1.0.0. This is due to improper input validation in the maybe_login_temporary_user() function, which fails to verify that the \u0027temp-login-token\u0027 GET parameter is a scalar string before processing it. When the parameter is supplied as an array, PHP\u0027s empty() check is bypassed and sanitize_key() returns an empty string, which is then passed as the meta_value to get_users(). WordPress ignores an empty meta_value and returns all users matching the meta_key \u0027_temporary_login_token\u0027, allowing authentication without a valid token. This makes it possible for unauthenticated attackers to authenticate as any active temporary login user by sending a single crafted GET request.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-288\", \"description\": \"CWE-288 Authentication Bypass Using an Alternate Path or Channel\"}]}], \"providerMetadata\": {\"orgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"shortName\": \"Wordfence\", \"dateUpdated\": \"2026-05-01T09:26:06.824Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-7567\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-01T14:27:42.580Z\", \"dateReserved\": \"2026-04-30T20:58:51.799Z\", \"assignerOrgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"datePublished\": \"2026-05-01T09:26:06.824Z\", \"assignerShortName\": \"Wordfence\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.



Detection rules are retrieved from Rulezet.