CVE-2019-11489: Incorrect Access Control in the Administrative Management Interface in SimplyBook.me Enterprise before 2019-04

Q: How do I fix CVE-2019-11489?

simplybook: upgrade to 2019-04-23. Exact commands for each OS are on this page.

Q: Is CVE-2019-11489 being exploited?

CVE-2019-11489 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-11489 affect?

CVE-2019-11489 affects simplybook. Severity is high (CVSS 8.8). 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

Q: How urgent is CVE-2019-11489?

Priority 57/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2019-11489 is a high-severity flaw (CVSS 8.8) affecting simplybook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	2.5% (top 15%)
CISA exploited list	No
Published	2019-04-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: simplybook

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-04-25 21:29 UTCPublished CVE record published
2026-06-17 02:13 UTCUpdated Record last modified

simplybook simplybook UPGRADE

Affected: < 2019-04-23

Fixed in: 2019-04-23

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy simplybook || rpm -q simplybook || simplybook --version

2. UPGRADE to 2019-04-23 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade simplybook

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade simplybook

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-11489?

simplybook: upgrade to 2019-04-23. Exact commands for each OS are on this page.

Is CVE-2019-11489 being exploited?

CVE-2019-11489 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-11489 affect?

CVE-2019-11489 affects simplybook. Severity is high (CVSS 8.8). 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

How urgent is CVE-2019-11489?

Priority 57/100. High severity; Public exploit reference

Related CVEs

CVE-2019-11887 CRITICAL 9.8 UPGRADE SimplyBook.me through 2019-05-11 does not properly restrict File Upload which could allow remote code executio
CVE-2019-11488 HIGH 8.1 UPGRADE Incorrect Access Control in the Account Access / Password Reset Link in SimplyBook.me Enterprise before 2019-0

References

← Back to latest CVEs