CVE-2026-2519
CVE-2026-2519 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-472.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- EPSS exploit prediction: 0% (36th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-20890
- Weakness: CWE-472
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-2519?
- 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.
- How severe is CVE-2026-2519?
- CVE-2026-2519 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2026-2519 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-2519?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-2519 have an EU (EUVD) identifier?
- Yes. CVE-2026-2519 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20890.
- When was CVE-2026-2519 published?
- CVE-2026-2519 was published on 2026-04-09 and last updated on 2026-06-17.
References
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/trunk/frontend/modules/booking/Ajax.php#L709
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/trunk/lib/CartInfo.php#L450
- https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/trunk/lib/UserBookingData.php#L355
- https://plugins.trac.wordpress.org/changeset/3480956/
- https://www.booking-wp-plugin.com/change-log/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ead87d8b-2659-4e8b-a0b9-138b1db89e36?source=cve
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