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CVE-2026-90977 (GCVE-0-2026-90977)

Vulnerability from nvd – Published: 2026-09-18 06:11 – Updated: 2026-09-18 10:59

Title

Clean Login < 1.19 - Unauthenticated CAPTCHA Bypass via Empty Session Comparison

Summary

The Clean Login WordPress plugin before 1.19 does not verify its registration CAPTCHA when the stored session value is empty, allowing unauthenticated users to bypass the anti-automation control on the registration form and create accounts without solving it.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-18 10:55 UTC

CWE

CWE-697 Incorrect Comparison
CWE-697 - Incorrect Comparison

Assigner

WPScan CNA under the mitre root

CNA scorecard E 44/100 over 1652 records in the last 180 days details

References

1 reference

URL	Tags
https://wpscan.com/vulnerability/368db83e-ed7b-4f…	exploitvdb-entrytechnical-description

Impacted products

1 product

Vendor	Product	Version
Unknown	Clean Login	Affected: 0 , < 1.19 (semver)

Credits

Arthur Morgan WPScan

Show details on NVD website

JSON

To clipboard

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    "adp": [
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}

CVE-2026-90976 (GCVE-0-2026-90976)

Vulnerability from nvd – Published: 2026-09-18 06:11 – Updated: 2026-09-18 10:59

Title

Clean Login < 1.19 - Unauthenticated Account Creation with Registration Disabled

Summary

The Clean Login WordPress plugin before 1.19 does not check whether user registration is enabled before creating an account in its registration handler, allowing unauthenticated users to create accounts even when the site has registration disabled.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-18 10:55 UTC

CWE

CWE-284 Improper Access Control
CWE-284 - Improper Access Control

Assigner

WPScan CNA under the mitre root

CNA scorecard E 44/100 over 1652 records in the last 180 days details

References

1 reference

URL	Tags
https://wpscan.com/vulnerability/e72f9529-6500-4e…	exploitvdb-entrytechnical-description

Impacted products

1 product

Vendor	Product	Version
Unknown	Clean Login	Affected: 0 , < 1.19 (semver)

Credits

Artus KG WPScan

Show details on NVD website

JSON

To clipboard

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}

CVE-2022-4838 (GCVE-0-2022-4838)

Vulnerability from nvd – Published: 2023-02-06 19:59 – Updated: 2025-03-25 20:38

Title

Clean Login < 1.13.7 - Contributor+ Stored XSS via Shortcode

Summary

The Clean Login WordPress plugin before 1.13.7 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-25 20:37 UTC

CWE

CWE-79 Cross-Site Scripting (XSS)

Assigner

WPScan CNA under the mitre root

CNA scorecard E 44/100 over 1652 records in the last 180 days details

References

1 reference

URL	Tags
https://wpscan.com/vulnerability/9937e369-60e8-45…	exploitvdb-entrytechnical-description

Impacted products

1 product

Vendor	Product	Version
Unknown	Clean Login	Affected: 0 , < 1.13.7 (custom)

Credits

Lana Codes WPScan

Show details on NVD website

JSON

To clipboard

{
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CVE-2026-90977 (GCVE-0-2026-90977)

Vulnerability from cvelistv5 – Published: 2026-09-18 06:11 – Updated: 2026-09-18 10:59

Title

Clean Login < 1.19 - Unauthenticated CAPTCHA Bypass via Empty Session Comparison

Summary

The Clean Login WordPress plugin before 1.19 does not verify its registration CAPTCHA when the stored session value is empty, allowing unauthenticated users to bypass the anti-automation control on the registration form and create accounts without solving it.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-18 10:55 UTC

CWE

CWE-697 Incorrect Comparison
CWE-697 - Incorrect Comparison

Assigner

WPScan CNA under the mitre root

CNA scorecard E 44/100 over 1652 records in the last 180 days details

References

1 reference

URL	Tags
https://wpscan.com/vulnerability/368db83e-ed7b-4f…	exploitvdb-entrytechnical-description

Impacted products

1 product

Vendor	Product	Version
Unknown	Clean Login	Affected: 0 , < 1.19 (semver)

Credits

Arthur Morgan WPScan

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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CVE-2026-90976 (GCVE-0-2026-90976)

Vulnerability from cvelistv5 – Published: 2026-09-18 06:11 – Updated: 2026-09-18 10:59

Title

Clean Login < 1.19 - Unauthenticated Account Creation with Registration Disabled

Summary

The Clean Login WordPress plugin before 1.19 does not check whether user registration is enabled before creating an account in its registration handler, allowing unauthenticated users to create accounts even when the site has registration disabled.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-18 10:55 UTC

CWE

CWE-284 Improper Access Control
CWE-284 - Improper Access Control

Assigner

WPScan CNA under the mitre root

CNA scorecard E 44/100 over 1652 records in the last 180 days details

References

1 reference

URL	Tags
https://wpscan.com/vulnerability/e72f9529-6500-4e…	exploitvdb-entrytechnical-description

Impacted products

1 product

Vendor	Product	Version
Unknown	Clean Login	Affected: 0 , < 1.19 (semver)

Credits

Artus KG WPScan

Show details on NVD website

JSON

To clipboard

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        "providerMetadata": {
          "dateUpdated": "2026-09-18T10:59:55.567Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected",
          "product": "Clean Login",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "1.19",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Artus KG"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "WPScan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Clean Login WordPress plugin before 1.19 does not check whether user registration is enabled before creating an account in its registration handler, allowing unauthenticated users to create accounts even when the site has registration disabled."
        }
      ],
      "metrics": [
        {
          "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",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-284 Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-18T06:11:39.561Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "exploit",
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://wpscan.com/vulnerability/e72f9529-6500-4ed2-a8cc-d77045b6be5c/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Clean Login \u003c 1.19 - Unauthenticated Account Creation with Registration Disabled",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2026-90976",
    "datePublished": "2026-09-18T06:11:39.561Z",
    "dateReserved": "2026-09-14T13:40:23.363Z",
    "dateUpdated": "2026-09-18T10:59:55.567Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2022-4838 (GCVE-0-2022-4838)

Vulnerability from cvelistv5 – Published: 2023-02-06 19:59 – Updated: 2025-03-25 20:38

Title

Clean Login < 1.13.7 - Contributor+ Stored XSS via Shortcode

Summary

The Clean Login WordPress plugin before 1.13.7 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-25 20:37 UTC

CWE

CWE-79 Cross-Site Scripting (XSS)

Assigner

WPScan CNA under the mitre root

CNA scorecard E 44/100 over 1652 records in the last 180 days details

References

1 reference

URL	Tags
https://wpscan.com/vulnerability/9937e369-60e8-45…	exploitvdb-entrytechnical-description

Impacted products

1 product

Vendor	Product	Version
Unknown	Clean Login	Affected: 0 , < 1.13.7 (custom)

Credits

Lana Codes WPScan

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T01:55:45.769Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "exploit",
              "vdb-entry",
              "technical-description",
              "x_transferred"
            ],
            "url": "https://wpscan.com/vulnerability/9937e369-60e8-451c-8790-1a83a59115fc"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.4,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "LOW",
              "scope": "CHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-4838",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-25T20:37:47.839064Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-25T20:38:05.060Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://wordpress.org/plugins",
          "defaultStatus": "unaffected",
          "product": "Clean Login",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "1.13.7",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Lana Codes"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "WPScan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Clean Login WordPress plugin before 1.13.7 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-79 Cross-Site Scripting (XSS)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-02-06T19:59:19.786Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "exploit",
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://wpscan.com/vulnerability/9937e369-60e8-451c-8790-1a83a59115fc"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Clean Login \u003c 1.13.7 - Contributor+ Stored XSS via Shortcode",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2022-4838",
    "datePublished": "2023-02-06T19:59:19.786Z",
    "dateReserved": "2022-12-29T08:50:24.522Z",
    "dateUpdated": "2025-03-25T20:38:05.060Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Find a vulnerability

Search criteria

6 vulnerabilities found for Clean Login by Unknown

CVE-2026-90977 (GCVE-0-2026-90977)

CVE-2026-90976 (GCVE-0-2026-90976)

CVE-2022-4838 (GCVE-0-2022-4838)

CVE-2026-90977 (GCVE-0-2026-90977)

CVE-2026-90976 (GCVE-0-2026-90976)

CVE-2022-4838 (GCVE-0-2022-4838)