WordPress SmartSMTP plugin <= 1.2.0 - Cross Site Scripting (XSS) vulnerability
Priority LOW 31CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- 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-79.
Summary
Unauthenticated Cross Site Scripting (XSS) in SmartSMTP <= 1.2.0 versions.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00251 16th 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 |
|---|---|---|---|---|---|
| ThemeGrill | SmartSMTP | up to 1.2.0 | — | No fix listed | CNA |
- SmartSMTP VendorThemeGrill Affected up to 1.2.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-66606
- 2026-10-03 Alias added: GHSA-jhjw-h99h-cgrf
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- TI-2026-39610 WordPress Registration Form for WooCommerce plugin <= 1.0.9 - Privilege Escalation vulnerability CVSS 3.1CRITICAL 9.8
- TI-2026-86554 Privilege escalation in Registration Form for WooCommerce checkout CVSS 3.1CRITICAL 9.8
- TI-2020-18616 themegrill-demo-importer before 1.6.2 does not require authentication for wiping the… CVSS 3.1CRITICAL 9.1
- TI-2020-18972 ThemeGrill Demo Importer 1.3.4 - 1.6.1 - Authorization Bypass to Site Reset CVSS 3.1CRITICAL 9.9
Sources
- CVE-2026-66606 · CVE Program
- CVE-2026-66606 · NVD
- FIRST EPSS
- GHSA-jhjw-h99h-cgrf · GitHub Advisory Database · CC BY 4.0
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