CVE-2026-14334 json
Booking calendar, Appointment Booking System <= 3.2.36 - Unauthenticated Stored XSS via SVG File Upload
published 2026-08-19 2 mo ago modified 2026-10-22 17 d ago also EUVD-2026-62264
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
The Booking calendar, Appointment Booking System WordPress plugin through 3.2.36 does not properly sanitize uploaded SVG files, allowing unauthenticated attackers to upload a file that bypasses the Booking calendar, Appointment Booking System WordPress plugin through 3.2.36's script-stripping and executes arbitrary JavaScript when the SVG is opened, including in the session of an administrator who reviews the submitted booking.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/9ddd1628-0b06-461b-8a5f-ba977f83fa7f/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
- Unknown Booking calendar, Appointment Booking System
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpscan.com
/vulnerability/9ddd1628-0b06-461b-8a5f-ba977f83fa7f/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-14334
- NVD CVE-2026-14334
Fencer Vulns 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.