CVE-2021-47957

MEDIUM 6.4

WordPress Plugin Cookie Law Bar 1.2.1 Stored XSS via clb_bar_msg

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	cookielawinfo
Product	cookie law bar
Published	May 16, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

None

Affected Versions

Cookielawinfo / Cookie Law Bar

1.2.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Mesut Cetin