Authentication bypass in WordPress Zero Spam plugin
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-290.
Summary
The Zero Spam plugin by Ben Marshall for WordPress through 5.7.11 contains an authentication bypass by spoofing (CWE-290). An unauthenticated remote attacker can bypass its authentication checks, with a partial impact on integrity.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Unauthenticated Bypass Vulnerability in Zero Spam <= 5.7.11 versions.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Ben Marshall | Zero Spam | up to 5.7.11 | — | No fix listed | CNA |
- Zero Spam VendorBen Marshall Affected up to 5.7.11 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for Zero Spam.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-06 Threatist record created from CVE-2026-105057
- 2026-10-06 Alias added: GHSA-8hj9-h4vc-9f57
- 2026-10-06 CISA SSVC decision points changed
References
Sources
- CVE-2026-105057 · CVE Program
- CVE-2026-105057 · NVD
- FIRST EPSS
- GHSA-8hj9-h4vc-9f57 · 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