Vulnerability · Published May 16, 2026 · Assigned by VulnCheck

CVE-2021-47957WordPress Plugin Cookie Law Bar 1.2.1 Stored XSS via clb_bar_msg

Medium 6.4

In plain English

A medium-severity cross-site scripting in Cookie Law Bar from Cookielawinfo. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).

Severity (CVSS 3.1)6.4Medium

Exploit odds (30 days)0.2%top 90.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Cookielawinfo	Cookie Law Bar	1.2.1

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References

ExploitDB-49905 exploit
Official Product Homepage product
Product Reference product
VulnCheck Advisory: WordPress Plugin Cookie Law Bar 1.2.1 Stored XSS via clb_bar_msg third-party-advisory