CVE-2023-3388 in the critical feed json
Beautiful Cookie Consent Banner <= 2.10.1 - Unauthenticated Stored Cross-Site Scripting
published 2023-06-24 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-44055
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 84.3%
- EPSS 84.3% chance of exploitation in 30 days, percentile 99.7%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
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.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 21 mo ago
Exploit prediction
84.34% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Beautiful Cookie Consent Banner < 2.10.2 - Cross-Site Scripting nuclei detection template
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected products
- nikelschubert Beautiful Cookie Consent Banner
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
plugins.trac.wordpress.org
/changeset?sfp_email=&sfph_mail=&reponame=&old=2857982%40beautiful-and-responsive-cookie-consent&new=2857982%4
patch
-
wordfence.com
/threat-intel/vulnerabilities/id/542a4079-b1a2-49bc-9ddd-ba7978c9992e?source=cve
third-party-advisory
-
wordfence.com
/blog/2023/05/wordfence-firewall-blocks-bizarre-large-scale-xss-campaign/
third-party-advisory
Sources
- CVE List CVE-2023-3388
- NVD CVE-2023-3388
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.