Cross-site scripting in beaverbuilder Beaver Builder Plugin
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Beaver Builder Plugin (Starter Version) plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'no_results_message' node_preview Parameter in all versions up to, and including, 2.11.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| beaverbuilder | Beaver Builder Plugin (Starter Version) | up to 2.11.0.1 | — | No fix listed | CNA |
- Beaver Builder Plugin (Starter Version) Vendorbeaverbuilder Affected up to 2.11.0.1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-18843
- 2026-10-03 Alias added: GHSA-grcg-2g4r-q84p
References
More beaverbuilder vulnerabilities
- TI-2023-05334 Assistant < 1.4.4 - Editor+ SSRF CVSS 3.1HIGH 8.8
- TI-2022-03124 Customizer Export/Import < 0.9.5 - Admin+ PHP Objection Injection CVSS 3.1HIGH 7.2
- TI-2023-01273 Customizer Export/Import < 0.9.6 - Admin+ PHP Object Injection CVSS 3.1HIGH 7.2
- TI-2024-29515 WordPress Beaver Builder plugin <= 2.8.3.2 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2026-67468 Beaver Builder Page Builder <= 2.11.0.5 - Unauthenticated Arbitrary Shortcode Execution via Sidebar Module Widget Output CVSS 3.1CRITICAL 9.1
- TI-2022-16754 WordPress Beaver Builder plugin <= 2.5.4.3 - Broken Access Control vulnerability CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-18843 · CVE Program
- CVE-2026-18843 · NVD
- FIRST EPSS
- GHSA-grcg-2g4r-q84p · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences