Vulnerability-Lookup

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

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

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

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CNVD-2026-21413

Vulnerability from cnvd - Published: 2026-05-22

Title

WordPress插件Cookie Law Bar跨站脚本漏洞

Description

WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress插件Cookie Law Bar存在跨站脚本漏洞，攻击者可利用该漏洞通过注入精心设计的有效载荷执行任意Web脚本或HTML。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://wordpress.org/plugins/cookie-law-bar/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-47957

Impacted products

Name
WordPress Cookie Law Bar plugin 1.2.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-47957",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-47957"
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-21413",
  "openTime": "2026-05-22",
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    "product": "WordPress Cookie Law Bar plugin 1.2.1"
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  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-47957",
  "serverity": "\u4e2d",
  "submitTime": "2026-05-20",
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}

FKIE_CVE-2021-47957

Vulnerability from fkie_nvd - Published: 2026-05-16 16:16 - Updated: 2026-06-17 04:18

Severity

6.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://wordpress.org/plugins/cookie-law-bar/
	disclosure@vulncheck.com	https://www.cookielawinfo.com/wordpress-plugin/
	disclosure@vulncheck.com	https://www.exploit-db.com/exploits/49905
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/wordpress-plugin-cookie-law-bar-stored-xss-via-clb-bar-msg

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "product": "Cookie Law Bar",
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  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://wordpress.org/plugins/cookie-law-bar/"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.cookielawinfo.com/wordpress-plugin/"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.exploit-db.com/exploits/49905"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/wordpress-plugin-cookie-law-bar-stored-xss-via-clb-bar-msg"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-FWF2-QQ89-W6P9

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

Details

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"
    }
  ]
}

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

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

CNVD-2026-21413

FKIE_CVE-2021-47957

GHSA-FWF2-QQ89-W6P9

Tags

Sightings

Nomenclature