CVE-2019-11489

Name: CVE-2019-11489
Creator: NVD / NIST
Published: 2019-04-25T21:29:00.54+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.56%

Last modified Jun 17, 2026

CVE-2019-11489 is a vulnerability of currently unknown severity. Incorrect Access Control in the Administrative Management Interface in SimplyBook.me Enterprise before 2019-04-23 allows Authenticated Low-Priv Users to Elevate Privileges to Full Admin Rights via a crafted HTTP PUT Request, as demonstrated by modified JSON data to a /v2/rest/ URI.. EPSS estimates a 2.56% chance of exploitation in the next 30 days.

Description

Incorrect Access Control in the Administrative Management Interface in SimplyBook.me Enterprise before 2019-04-23 allows Authenticated Low-Priv Users to Elevate Privileges to Full Admin Rights via a crafted HTTP PUT Request, as demonstrated by modified JSON data to a /v2/rest/ URI.

Metrics

EPSS Probability

2.56%

83.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Simplybook	Simplybook	< 2019-04-23

References

https://blog.cybrgrade.com/CVE-2019-11489-SimplyBook.me-privesc/Exploit, Third Party Advisory
https://cybrgrade.com/files/Report_SimplyBookIt_Privesc_by_CybrGradeUKLtd.pdfExploit, Third Party Advisory
https://blog.cybrgrade.com/CVE-2019-11489-SimplyBook.me-privesc/Exploit, Third Party Advisory
https://cybrgrade.com/files/Report_SimplyBookIt_Privesc_by_CybrGradeUKLtd.pdfExploit, Third Party Advisory

Timeline

Published: Apr 25, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-11489?

How severe is CVE-2019-11489?

Severity scoring for CVE-2019-11489 is pending analysis. The EPSS model estimates a 2.56% probability of exploitation in the next 30 days.

How do I fix CVE-2019-11489?

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-2019-11489?

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

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Source: NVD / NIST