CVE-2023-3388
MediumExploitedBeautiful Cookie Consent Banner <= 2.10.1 - Unauthenticated Stored Cross-Site Scripting
Published Jan 30, 2023 · Updated Apr 8, 2026 · Also known as 542a4079-b1a2-49bc-9ddd-ba7978c9992e
Key Facts
Patch immediately- CVE-2023-3388 is a medium-severity vulnerability (CVSS 6.1 v3.1) affecting Beautiful Cookie Consent Banner (Beautiful-Cookie-Banner), beautiful-and-responsive-cookie-consent (wordpress-plugin).
- It is exploited in the wild, listed in Industry KEV feed since Feb 1, 2023. No public exploit code is known.
- EPSS estimates a 84% probability of exploitation in the next 30 days.
- Fixed versions are available, including beautiful-and-responsive-cookie-consent 2.10.2, Beautiful Cookie Consent Banner 2.10.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS (30-day exploit likelihood)
84%
Higher than 99.6% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
None known
Get the full CVE-2023-3388 brief as a PDF
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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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Feb 1, 2023 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Beautiful Cookie Consent BannerBeautiful-Cookie-Banner | See advisory | 2.10.1 |
| beautiful-and-responsive-cookie-consentwordpress-plugin | See advisory | 2.10.2 |
Patched Releases
beautiful-and-responsive-cookie-consent
2.10.2
Beautiful Cookie Consent Banner
2.10.1
Timeline
Publicly disclosed
Jan 30, 2023
Added to Industry KEV feed
Feb 1, 2023
Last updated
Apr 8, 2026
Weakness Type
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
- advisoryVulnCheck exploitation report
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/542a4079-b1a2-49bc-9ddd-ba7978c9992e?source=api-prod
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/542a4079-b1a2-49bc-9ddd-ba7978c9992e?source=api-scan
- advisoryhttps://www.wordfence.com/threat-intel/vulnerabilities/id/542a4079-b1a2-49bc-9ddd-ba7978c9992e?source=cve
- patchhttps://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=
FAQ
Common Questions.
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.
Affected: Beautiful Cookie Consent Banner (Beautiful-Cookie-Banner); beautiful-and-responsive-cookie-consent (wordpress-plugin). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Feb 1, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including beautiful-and-responsive-cookie-consent 2.10.2, Beautiful Cookie Consent Banner 2.10.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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