CVE-2026-92561
Booking Calendar <= 11.8.2 - Reflected Cross-Site Scripting via 'options' Parameter
- Published
- Updated
- Reserved
- Assigned by
- Wordfence
Description
The Booking Calendar plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'options' parameter in all versions up to, and including, 11.8.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. The nonce check is bypassed by default because the 'booking_is_nonce_at_front_end' option ships disabled, allowing unauthenticated requests to reach the vulnerable sink without any verification.
Timeline
ID reserved
By Wordfence
- 2 days later
· 2 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.41% · top 65% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.
Weakness
Affected products
- affected ≤ 11.8.2
References (6)
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e8645b58-6b2a-4659-a002-d622453bea42?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/booking/tags/11.8.2/core/timeline/v2/wpbc-class-timeline_v2.php#L593 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/booking/tags/11.8.2/core/lib/wpbc-ajax.php#L25 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/booking/tags/11.8.2/core/timeline/v2/wpbc-class-timeline_v2.php#L3385 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/booking/tags/11.8.2/core/timeline/v2/wpbc-class-timeline_v2.php#L919 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3699185%40booking&new=3699185%40booking (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-92561)Record last updated .