CVE-2021-45914

Name: CVE-2021-45914
Creator: NVD / NIST
Published: 2022-05-24T15:15:07.553+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.48%

Last modified Jun 17, 2026

CVE-2021-45914 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In LuxSoft LuxCal Web Calendar before 5.2.0, an unauthenticated attacker can manipulate a POST request. This allows the attacker's session to be authenticated as any registered LuxCal user, including the site administrator.. EPSS estimates a 1.48% chance of exploitation in the next 30 days.

Description

In LuxSoft LuxCal Web Calendar before 5.2.0, an unauthenticated attacker can manipulate a POST request. This allows the attacker's session to be authenticated as any registered LuxCal user, including the site administrator.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.48%

70.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Luxsoft	Luxcal	< 5.2.0

References

https://github.com/h1pmnhNot Applicable
https://h1pmnh.github.io/post/cve-luxcal-2021/Third Party Advisory
https://twitter.com/h1pmnhThird Party Advisory
https://www.luxsoft.eu/index.php?pge=dloadProduct, Release Notes, Vendor Advisory
https://github.com/h1pmnhNot Applicable
https://h1pmnh.github.io/post/cve-luxcal-2021/Third Party Advisory
https://twitter.com/h1pmnhThird Party Advisory
https://www.luxsoft.eu/index.php?pge=dloadProduct, Release Notes, Vendor Advisory

Timeline

Published: May 24, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-45914?

How severe is CVE-2021-45914?

CVE-2021-45914 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.48% probability of exploitation in the next 30 days.

How do I fix CVE-2021-45914?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-45914?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST