WordPress Anti Spam and list cleaner – AcyChecker plugin <= 2.0.0 - Broken Access Control vulnerability
Priority LOW 28CWE-862Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- 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 Anti Spam and list cleaner – AcyChecker <= 2.0.0 versions.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0026 17th 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
- 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 |
|---|---|---|---|---|---|
| AcyMailing Newsletter Team | Anti Spam and list cleaner – AcyChecker | up to 2.0.0 | — | No fix listed | CNA |
- Anti Spam and list cleaner – AcyChecker VendorAcyMailing Newsletter Team Affected up to 2.0.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-66689
- 2026-10-03 Alias added: GHSA-mc42-vpmr-826j
More AcyMailing Newsletter Team vulnerabilities
- TI-2026-41563 WordPress AcyMailing SMTP Newsletter plugin <= 10.11.0 - SQL Injection vulnerability CVSS 3.1CRITICAL 9.3
- TI-2026-63645 WordPress AcyMailing SMTP Newsletter plugin <= 11.0.5 - Arbitrary File Deletion vulnerability CVSS 3.1HIGH 8.6
- TI-2026-63409 WordPress AcyMailing SMTP Newsletter plugin <= 11.0.5 - Remote Code Execution (RCE) vulnerability CVSS 3.1CRITICAL 9.0
- TI-2026-41565 WordPress AcyMailing SMTP Newsletter plugin <= 10.11.0 - Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2026-41564 WordPress AcyMailing SMTP Newsletter plugin <= 10.11.1 - Broken Access Control vulnerability CVSS 3.1HIGH 7.1
- TI-2025-18334 WordPress AcyMailing Plugin < 9.11.1 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
Sources
- CVE-2026-66689 · CVE Program
- CVE-2026-66689 · NVD
- FIRST EPSS
- GHSA-mc42-vpmr-826j · 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