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Fencer Intel
medium 5.4

CVE-2021-25061 json

WP Booking System – Booking Calendar < 2.0.15 - Authenticated Reflected Cross-Site Scripting (XSS)

published 4y ago modified 4mo ago also EUVD-2021-11973

cvss
5.4
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

The WP Booking System WordPress plugin before 2.0.15 was affected by a reflected xss in wp-booking-system on the wpbs-calendars admin page.

Patch / fix

  • wpbookingsystem wp_booking_system 2.0.15

Is CVE-2021-25061 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/bd9dc754-08a4-4bfc-8dda-3f5c0e070f7e referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N

Affected products

  • Unknown WP Booking System – Booking Calendar

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

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.