How severe is CVE-2023-3388?

CVE-2023-3388 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-3388 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 84% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3388?

CVE-2023-3388 affects Beautiful-cookie-banner Beautiful Cookie Consent Banner. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-3388?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-3388 published?

CVE-2023-3388 was published on 2023-06-24 and last updated on 2026-06-17.

CVE-2023-3388

CVE-2023-3388 is a high-severity vulnerability in Beautiful-cookie-banner Beautiful Cookie Consent Banner with a CVSS 3.x base score of 7.2. Its EPSS exploit-prediction score of 84% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-79.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 84% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Beautiful-cookie-banner Beautiful Cookie Consent Banner
Published: 2023-06-24
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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. 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.
How severe is CVE-2023-3388?: CVE-2023-3388 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-3388 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 84% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3388?: CVE-2023-3388 affects Beautiful-cookie-banner Beautiful Cookie Consent Banner. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-3388?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-3388 published?: CVE-2023-3388 was published on 2023-06-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:beautiful-cookie-banner:beautiful_cookie_consent_banner:*:*:*:*:*:wordpress:*:*

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