CVE-2026-39527
WordPress WpStream plugin < 4.11.2 - Arbitrary File Upload vulnerability
Subscriber Arbitrary File Upload in WpStream < 4.11.2 versions.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
WordPress WpStream plugin < 4.11.2 - Arbitrary File Upload vulnerability
Subscriber Arbitrary File Upload in WpStream < 4.11.2 versions.
- Record
CVE-2026-39527- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-434
- Updated
- 2026-11-02
EUVDEUVD-2026-36959
Subscriber Arbitrary File Upload in WpStream < 4.11.2 versions.
- Record
EUVD-2026-36959- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-6cfj-rmrx-95m5
Subscriber Arbitrary File Upload in WpStream < 4.11.2 versions.
Subscriber Arbitrary File Upload in WpStream < 4.11.2 versions.
- Record
GHSA-6cfj-rmrx-95m5- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-434
- Updated
- 2026-11-02
NVD
Subscriber Arbitrary File Upload in WpStream < 4.11.2 versions.
- Record
CVE-2026-39527- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L - Weakness
- CWE-434
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-39527 is a medium vulnerability (CVSS 5.4) in Sc Internet Vivoo Wpstream, published June 15, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 21st percentile. No source names a fixed version.