Vulnerability-Lookup

GHSA-FWF2-QQ89-W6P9

Vulnerability from github – Published: 2026-05-16 18:31 – Updated: 2026-05-16 18:31

Details

Cookie Law Bar 1.2.1 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by submitting unsanitized input to the Bar Message field. Attackers can inject script payloads through the plugin settings page that execute in the browsers of all WordPress users viewing the site, enabling cookie theft and sensitive data exfiltration.

Severity

6.4 (Medium)


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

5.1 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-47957"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-16T16:16:22Z",
    "severity": "MODERATE"
  },
  "details": "Cookie Law Bar 1.2.1 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by submitting unsanitized input to the Bar Message field. Attackers can inject script payloads through the plugin settings page that execute in the browsers of all WordPress users viewing the site, enabling cookie theft and sensitive data exfiltration.",
  "id": "GHSA-fwf2-qq89-w6p9",
  "modified": "2026-05-16T18:31:38Z",
  "published": "2026-05-16T18:31:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47957"
    },
    {
      "type": "WEB",
      "url": "https://wordpress.org/plugins/cookie-law-bar"
    },
    {
      "type": "WEB",
      "url": "https://www.cookielawinfo.com/wordpress-plugin"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/49905"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/wordpress-plugin-cookie-law-bar-stored-xss-via-clb-bar-msg"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2021-47957 (GCVE-0-2021-47957)

Vulnerability from cvelistv5 – Published: 2026-05-16 15:26 – Updated: 2026-05-24 01:37

Title

WordPress Plugin Cookie Law Bar 1.2.1 Stored XSS via clb_bar_msg

Summary

Severity

5.1 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

6.4 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

VulnCheck

References

4 references

URL	Tags
https://www.exploit-db.com/exploits/49905	exploit
https://www.cookielawinfo.com/wordpress-plugin/	product
https://wordpress.org/plugins/cookie-law-bar/	product
https://www.vulncheck.com/advisories/wordpress-pl…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Cookielawinfo	Cookie Law Bar	Affected: 1.2.1

Date Public

2021-05-24 00:00

Credits

Mesut Cetin

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47957",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-18T13:50:43.419884Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-18T13:53:47.600Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cookie Law Bar",
          "vendor": "Cookielawinfo",
          "versions": [
            {
              "status": "affected",
              "version": "1.2.1"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Mesut Cetin"
        }
      ],
      "datePublic": "2021-05-24T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Cookie Law Bar 1.2.1 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by submitting unsanitized input to the Bar Message field. Attackers can inject script payloads through the plugin settings page that execute in the browsers of all WordPress users viewing the site, enabling cookie theft and sensitive data exfiltration."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-24T01:37:14.399Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "ExploitDB-49905",
          "tags": [
            "exploit"
          ],
          "url": "https://www.exploit-db.com/exploits/49905"
        },
        {
          "name": "Official Product Homepage",
          "tags": [
            "product"
          ],
          "url": "https://www.cookielawinfo.com/wordpress-plugin/"
        },
        {
          "name": "Product Reference",
          "tags": [
            "product"
          ],
          "url": "https://wordpress.org/plugins/cookie-law-bar/"
        },
        {
          "name": "VulnCheck Advisory: WordPress Plugin Cookie Law Bar 1.2.1 Stored XSS via clb_bar_msg",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/wordpress-plugin-cookie-law-bar-stored-xss-via-clb-bar-msg"
        }
      ],
      "title": "WordPress Plugin Cookie Law Bar 1.2.1 Stored XSS via clb_bar_msg",
      "x_generator": {
        "engine": "vulncheck"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2021-47957",
    "datePublished": "2026-05-16T15:26:09.379Z",
    "dateReserved": "2026-02-01T11:24:18.720Z",
    "dateUpdated": "2026-05-24T01:37:14.399Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-FWF2-QQ89-W6P9

CVE-2021-47957 (GCVE-0-2021-47957)

Tags

Sightings

Nomenclature