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PatchSiren cyber security CVE debrief

CVE-2026-39587 WP BASE Booking CVE debrief

CVE-2026-39587 is a high-severity vulnerability in the WP BASE Booking plugin, with a CVSS score of 8.1. The vulnerability allows for unauthenticated privilege escalation and affects versions up to 5.9.0. The CVE was published on 2026-06-15T21:16:47.923Z and last modified on 2026-06-15T21:24:32.790Z.

Vendor
WP BASE Booking
Product
WP BASE Booking
CVSS
HIGH 8.1
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 the WP BASE Booking plugin, particularly those using versions up to 5.9.0, should be aware of this vulnerability and take necessary actions to mitigate the risk.

Technical summary

The vulnerability is caused by a weakness in the WP BASE Booking plugin, which allows an attacker to escalate privileges without authentication. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Defensive priority

High

Recommended defensive actions

  • Update the WP BASE Booking plugin to a version that is not vulnerable.
  • Refer to the vendor's documentation or support pages for information on patched versions.

Evidence notes

The CVE record and details were obtained from official sources, including [cve-org] and [nvd]. Additional information was obtained from [ref-4].

Sources and references

Verified primary and authoritative sources

  • CVE-2026-39587 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-39587

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-39587 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-39587

    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.