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Loading vulnerability database

BACK TO VEDB

CVE-2021-20840: Improper Neutralization of Input During Web Page Generation

Name: CVE-2021-20840: Improper Neutralization of Input During Web Page Generation
Creator: Rapid7
Published: 2021-11-24T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-20840, CWE-79, CVSS 6.1, EPSS 0.00668

REQUEST DEMO

Cross-site scripting vulnerability in Booking Package - Appointment Booking Calendar System versions prior to 1.5.11 allows a remote attacker to inject an arbitrary script via unspecified vectors.

CVSS Details

CVSS 3.1 Base Score: 6.1
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Booking Package Plugin	—	Update booking-package plugin to version 1.5.11, or a newer patched version	May 15, 2025	Nov 10, 2021

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CVE details

CVSS v4 ScoreN/A

CVSS v3 Score

6.1 Medium

EPSS Score1%

EPSS Percentile71%

In CISA KEV CatalogueFalse

Published

Nov 24, 2021

References

NVD ↗

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