CVE-2026-96573 json
Appointment Hour Booking <= 1.5.97 - Unauthenticated Stored DOM-Based Cross-Site Scripting via Booking Form Single-Line Field via Schedule Calendar List Renderer
published last mo. modified last mo. also EUVD-2026-90566
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 17%
- public exploits
- 0
- none known
Summary
The Appointment Hour Booking – Booking Calendar plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via Booking Form Single-Line Field via Schedule Calendar List Renderer in all versions up to, and including, 1.5.97 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the 'list_readmore_numberofwords' Other Parameters setting to be configured with a positive integer value; the default value of 0 bypasses the decode-and-truncate branch entirely and is not exploitable through this sink.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last mo.
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
Affected products
- codepeople Appointment Hour Booking – Booking Calendar
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/3044e60f-b930-42db-ba5d-656e71b84226?source=cve
- plugins.trac.wordpress.org /browser/appointment-hour-booking/tags/1.5.97/mv/js/jquery.calendar.js
- plugins.trac.wordpress.org /browser/appointment-hour-booking/tags/1.5.97/cp-main-class.inc.php#L1473
- plugins.trac.wordpress.org /browser/appointment-hour-booking/tags/1.5.97/cp-main-class.inc.php#L1609
- plugins.trac.wordpress.org /browser/appointment-hour-booking/tags/1.5.97/cp-main-class.inc.php#L1745
- plugins.trac.wordpress.org /browser/appointment-hour-booking/tags/1.5.97/classes/cp-base-class.inc.php#L81
- plugins.trac.wordpress.org /changeset?reponame=&old=3718725%40appointment-hour-booking&new=3718725%40appointment-hour-booking
Sources
- CVE List CVE-2026-96573
- NVD CVE-2026-96573
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.