GHSA-GHP2-H9W4-7R66

Vulnerability from github – Published: 2026-04-09 15:35 – Updated: 2026-04-09 15:35
VLAI?
Details

The Online Scheduling and Appointment Booking System – Bookly plugin for WordPress is vulnerable to price manipulation via the 'tips' parameter in all versions up to, and including, 27.0. This is due to the plugin trusting a user-supplied input without server-side validation against the configured price. This makes it possible for unauthenticated attackers to submit a negative number to the 'tips' parameter, causing the total price to be reduced to zero.

Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2026-2519"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-472"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-09T13:16:42Z",
    "severity": "MODERATE"
  },
  "details": "The Online Scheduling and Appointment Booking System \u2013 Bookly plugin for WordPress is vulnerable to price manipulation via the \u0027tips\u0027 parameter in all versions up to, and including, 27.0. This is due to the plugin trusting a user-supplied input without server-side validation against the configured price. This makes it possible for unauthenticated attackers to submit a negative number to the \u0027tips\u0027 parameter, causing the total price to be reduced to zero.",
  "id": "GHSA-ghp2-h9w4-7r66",
  "modified": "2026-04-09T15:35:07Z",
  "published": "2026-04-09T15:35:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2519"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/trunk/frontend/modules/booking/Ajax.php#L709"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/trunk/lib/CartInfo.php#L450"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/trunk/lib/UserBookingData.php#L355"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/3480956"
    },
    {
      "type": "WEB",
      "url": "https://www.booking-wp-plugin.com/change-log"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ead87d8b-2659-4e8b-a0b9-138b1db89e36?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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