CVE-2023-29427: Unauth

Q: How do I fix CVE-2023-29427?

amelia: upgrade to newer than 1.0.75. Exact commands for each OS are on this page.

Q: Is CVE-2023-29427 being exploited?

CVE-2023-29427 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-2023-29427 affect?

CVE-2023-29427 affects amelia. Severity is high (CVSS 7.1). Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in TMS Booking for Appointments and Events Calendar – Amelia plugin <= 1.0.75 versions.

Routine

HIGH 7.1UPGRADE

CVE-2023-29427 is a high-severity flaw (CVSS 7.1) affecting amelia. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in TMS Booking for Appointments and Events Calendar – Amelia plugin <= 1.0.75 versions.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-06-26
Last modified	2026-06-17

Publisher (CNA): Patchstack · Vendor: tms-outsource

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

Am I affected?

Timeline

2023-06-26 09:15 UTCPublished CVE record published
2026-06-17 05:50 UTCUpdated Record last modified

tms-outsource amelia UPGRADE

Affected: <= 1.0.75

Fixed in: newer than 1.0.75

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.0.75 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade amelia

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-2023-29427?

amelia: upgrade to newer than 1.0.75. Exact commands for each OS are on this page.

Is CVE-2023-29427 being exploited?

CVE-2023-29427 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-2023-29427 affect?

CVE-2023-29427 affects amelia. Severity is high (CVSS 7.1). Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in TMS Booking for Appointments and Events Calendar – Amelia plugin <= 1.0.75 versions.

How urgent is CVE-2023-29427?

Priority 34/100. High severity

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CVE-2024-22298 MEDIUM 5.3 UPGRADE Missing Authorization vulnerability in TMS Amelia ameliabooking.This issue affects Amelia: from n/a through 1.
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References

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