CVE-2023-3388
The Beautiful Cookie Consent Banner for WordPress is vulnerable to Stored Cross-Site Scripting via the 'nsc_bar_content_href' parameter in versions up to, and including, 2.10.1 due to insufficient input sanitization and output escaping.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 84.3%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
Description
The Beautiful Cookie Consent Banner for WordPress is vulnerable to Stored Cross-Site Scripting via the 'nsc_bar_content_href' parameter in versions up to, and including, 2.10.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. A partial patch was made available in 2.10.1 and the issue was fully patched in 2.10.2.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 84.34% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- beautiful-cookie-banner/beautiful cookie consent banner
- Source
- security@wordfence.com
EPSS 84.3% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2857982%40beautiful-and-responsive-cookie-consent&new=2857982%40beautiful-and-responsive-cookie-consent&sfp_email=&sfph_mail=Patch
- https://www.wordfence.com/blog/2023/05/wordfence-firewall-blocks-bizarre-large-scale-xss-campaign/Third Party Advisory
- https://www.wordfence.com/threat-intel/vulnerabilities/id/542a4079-b1a2-49bc-9ddd-ba7978c9992e?source=cveThird Party Advisory
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2857982%40beautiful-and-responsive-cookie-consent&new=2857982%40beautiful-and-responsive-cookie-consent&sfp_email=&sfph_mail=Patch
- https://www.wordfence.com/blog/2023/05/wordfence-firewall-blocks-bizarre-large-scale-xss-campaign/Third Party Advisory
- https://www.wordfence.com/threat-intel/vulnerabilities/id/542a4079-b1a2-49bc-9ddd-ba7978c9992e?source=cveThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.