WordPress MailChimp Block plugin <= 1.1.15 - Broken Access Control vulnerability
Priority MEDIUM 42CWE-862Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
Unauthenticated Broken Access Control in MailChimp Block <= 1.1.15 versions.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00301 22nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-56063
- 2026-10-03 Alias added: GHSA-h75p-rhw9-w8q8
More bPlugins vulnerabilities
- TI-2024-05133 HTML5 Video Player < 2.5.27 - Unauthenticated SQLi CVSS 3.1MEDIUM 6.5
- TI-2024-00982 SQL injection in html5-video-player CVSS 3.1CRITICAL 9.8
- TI-2023-00164 Html5 Audio Player < 2.1.12 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2025-11361 Missing authorization in bPlugins Document Embedder – Embed PDFs, Word, Excel, and Other… CVSS 3.1HIGH 8.6
- TI-2025-07373 B Blocks <= 2.0.6 - Missing Authorization to Unauthenticated Privilege Escalation via rgfr_registration Function CVSS 3.1CRITICAL 9.8
- TI-2023-24737 WordPress Icons Font Loader Plugin <= 1.1.2 is vulnerable to SQL Injection CVSS 3.1HIGH 8.8
Sources
- CVE-2026-56063 · CVE Program
- CVE-2026-56063 · NVD
- FIRST EPSS
- GHSA-h75p-rhw9-w8q8 · 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