PatchSiren cyber security CVE debrief

CVE-2026-34886 wp.insider CVE debrief

CVE-2026-34886 is a HIGH severity vulnerability with a CVSS score of 7.5. It is an Unauthenticated Broken Access Control issue affecting Simple Membership plugin versions <= 4.7.1.

Vendor: wp.insider
Product: Simple Membership
CVSS: HIGH 7.5
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-06-15
Original CVE updated: 2026-06-15
Advisory published: 2026-06-15
Advisory updated: 2026-06-15

Who should care

Users of Simple Membership plugin versions <= 4.7.1 should be aware of this vulnerability and take necessary actions to mitigate it.

Technical summary

The vulnerability has been described as CWE-862. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Defensive priority

HIGH

Recommended defensive actions

Update Simple Membership plugin to a version greater than 4.7.1.
Refer to resourceLinkAnnotations for additional mitigation or vendor references: ref-4.

Evidence notes

The CVE was published on 2026-06-15T21:16:41.600Z and last modified on 2026-06-15T21:24:32.790Z.

Sources and references

Verified primary and authoritative sources

CVE-2026-34886 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-34886

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-34886 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-34886

NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.