Vulnerability details
CVE-2026-27064
EverPress Mailster
WordPress Mailster plugin <= 4.1.17 - Arbitrary File Upload vulnerability
CVSS 3.1
9.1Critical
Official description
Editor Arbitrary File Upload in Mailster <= 4.1.17 versions.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.1Critical | 3.1 | CVEProject cvelistV5 (CNA) (Patchstack) | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| EverPress | Mailster | v ≤ 4.1.17 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-07-23
- Last updated
- 2026-07-23
- State
- Published
- Assigner (CNA)
- Patchstack
Exploit prediction (EPSS)
0.49%
Probability of exploitation in 30 days
43%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-434Unrestricted Upload of File with Dangerous Type