Vulnerabilities

CVE-2026-39527 | BDVDB-2026-340347 Detail

sc Internet VivooWpStream

Description#

Subscriber Arbitrary File Upload in WpStream < 4.11.2 versions.

Impact#

CAPEC-17 Using Malicious Files

Weaknesses#

CWE-434 Unrestricted Upload of File with Dangerous Type

References#

https://patchstack.com/database/wordpress/plugin/wpstream/vulnerability/wordpress-wpstream-plugin-4-11-2-arbitrary-file-upload-vulnerability?_s_id=cve

Exploit#

No public exploit known

History#

Version 12026-06-15Record published in the CVE List.

Published

Published: 2026-06-15
Last modified: 2026-06-15

Vendor information

Vendor: sc Internet Vivoo
Product: WpStream

All sc Internet Vivoo vulnerabilities

Score

5.4 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 21.9.

KEV

No

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Unrestricted File Upload

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 4.11.2
Fixed
4.11.2
Vulnerable
Not stated
Fixed
4.11.2

Scoring System

CVSS v4.0

Not available

CVSS v3.1

5.4 Medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	Low
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).