WordPress Booking Ultra Pro plugin <= 1.1.4 - Cross-Site Scripting (XSS) via Cross-Site Request Forgery (CSRF) vulnerability

published 2022-09-30 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-23431

cvss: 6.1; 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 20%
public exploits: 0; none known

Cross-Site Scripting (XSS) via Cross-Site Request Forgery (CSRF) vulnerability in Booking Ultra Pro plugin <= 1.1.4 at WordPress.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 20 mo ago (2025-02-20)

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

Booking Ultra Pro Booking Ultra Pro (WordPress plugin)

Classification

Weakness

CWE-352 Cross-Site Request Forgery
CWE-79 Improper Neutralization of Input During Web Page Generation

Technology feeds

WordPress rss critical rss

References

wordpress.org /plugins/booking-ultra-pro/
product
patchstack.com /database/vulnerability/booking-ultra-pro/wordpress-booking-ultra-pro-plugin-1-1-4-cross-site-scripting-xss-vi
third-party-advisory

Sources

CVE List CVE-2021-36855
NVD CVE-2021-36855

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.

Summary