PatchSiren cyber security CVE debrief
CVE-2026-42663 wp.insider CVE debrief
CVE-2026-42663 is a MEDIUM severity Unauthenticated Cross Site Scripting (XSS) vulnerability in Simple Membership plugin versions <= 4.7.2. The vulnerability was published on [cvePublishedAt] and last modified on [cveModifiedAt]. The CVSS score for this vulnerability is 6.5.
- Vendor
- wp.insider
- Product
- Simple Membership
- CVSS
- MEDIUM 6.5
- 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 <= 4.7.2 should be aware of this vulnerability and take necessary actions to mitigate it.
Technical summary
The vulnerability is an Unauthenticated Cross Site Scripting (XSS) in Simple Membership plugin versions <= 4.7.2. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.
Defensive priority
MEDIUM
Recommended defensive actions
- Update Simple Membership plugin to a version greater than 4.7.2.
- Refer to [ref-4] for mitigation or vendor reference.
Evidence notes
The vulnerability was reported by Patchstack.
Sources and references
Verified primary and authoritative sources
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CVE-2026-42663 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-42663
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-42663 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-42663
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.