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PatchSiren cyber security CVE debrief

CVE-2026-15151 Five Star Restaurant Reservations CVE debrief

The Five Star Restaurant Reservations WordPress plugin before 2.7.23 has a vulnerability allowing users with the lowest booking-management role to reset the site's configured booking notification rules due to a missing capability check on one of its AJAX actions. This vulnerability could potentially allow unauthorized changes to booking notification settings, impacting site security and data integrity. The plugin's code should be reviewed to identify the specific vulnerability and ensure proper authorization checks are in place. Evidence is limited, and defenders should verify plugin versions and configurations to mitigate potential risks. Further investigation is needed to determine the full scope of the vulnerability and its operational impact.

Vendor
Five Star Restaurant Reservations
Product
Five Star Restaurant Reservations WordPress plugin
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-02
Original CVE updated
2026-08-26
Advisory published
2026-08-02
Advisory updated
2026-08-26

Who should care

Administrators of WordPress sites using the Five Star Restaurant Reservations plugin should verify the plugin version and take necessary actions to mitigate the vulnerability. Site owners and security teams should review the plugin's functionality and ensure proper authorization checks are in place to prevent unauthorized changes to booking notification settings.

Technical summary

The Five Star Restaurant Reservations WordPress plugin before 2.7.23 does not perform a capability check on one of its AJAX actions, allowing users with the lowest booking-management role to reset the site's configured booking notification rules. This vulnerability could potentially allow unauthorized changes to booking notification settings. The plugin's code should be reviewed to identify the specific vulnerability and ensure proper authorization checks are in place.

Defensive priority

Administrators should verify the plugin version and restrict access to the booking-management role.

Recommended defensive actions

  • Verify the plugin version and update to 2.7.23 or later
  • Restrict access to the booking-management role
  • Monitor for suspicious activity related to the Five Star Restaurant Reservations plugin
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further investigation is needed to determine the full scope of the vulnerability. The Five Star Restaurant Reservations WordPress plugin before 2.7.23 has a vulnerability allowing users with the lowest booking-management role to reset the site's configured booking notification rules due to a missing capability check on one of its AJAX actions. The plugin's functionality and potential impact on site security should be reviewed. Evidence is limited, and defenders should verify plugin versions and configurations.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-15151 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-15151

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

  • CVE-2026-15151 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-15151

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

Supplemental references

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.