WordPress WpStream plugin < 4.11.2 - Arbitrary File Upload vulnerability
Priority LOW 24CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-434.
Summary
Subscriber Arbitrary File Upload in WpStream < 4.11.2 versions.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00291 21st percentileScored 2026-11-07
Fix Fixed WpStream (sc Internet Vivoo): 4.11.2
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 |
|---|---|---|---|---|---|
| sc Internet Vivoo | WpStream | before 4.11.2 | 4.11.2 | Patch available | CNA |
- WpStream Vendorsc Internet Vivoo Affected before 4.11.2 Fixed in 4.11.2 Patch available CNA
Remediation
- Fix · CNA WpStream (sc Internet Vivoo) Fixed in 4.11.2
Timeline
- 2026-10-02 Threatist record created from CVE-2026-39527
- 2026-10-03 Alias added: GHSA-6cfj-rmrx-95m5
References
More sc Internet Vivoo vulnerabilities
- TI-2026-68946 WordPress WP Rentals theme Broken Access Control CVSS 3.1MEDIUM 5.3
- TI-2026-21844 WordPress WP Rentals theme < 3.16.0 - Insecure Direct Object References (IDOR) vulnerability CVSS 3.1MEDIUM 5.4
Sources
- CVE-2026-39527 · CVE Program
- CVE-2026-39527 · NVD
- FIRST EPSS
- GHSA-6cfj-rmrx-95m5 · GitHub Advisory Database · CC BY 4.0
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