CVE-2021-39473: Saibamen HotelManager v1.2 is vulnerable to Cross Site Scripting (XSS) due to improper sanitization of comment

Routine

MEDIUM 5.4DOWNGRADE

CVE-2021-39473 is a medium-severity flaw (CVSS 5.4) affecting hotelmanager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Saibamen HotelManager v1.2 is vulnerable to Cross Site Scripting (XSS) due to improper sanitization of comment and contact fields.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-11-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: hotelmanager project

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

Am I affected?

Timeline

2022-11-04 19:15 UTCPublished CVE record published
2026-06-17 04:03 UTCUpdated Record last modified

hotelmanager project hotelmanager DOWNGRADE

Affected: 1.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.2 (Debian / Ubuntu)

apt-cache madison hotelmanager sudo apt install hotelmanager=<VERSION_BEFORE_1.2> sudo apt-mark hold hotelmanager

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list hotelmanager sudo dnf downgrade hotelmanager-<VERSION_BEFORE_1.2> sudo dnf versionlock add hotelmanager

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2021-39473?

hotelmanager: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-39473 being exploited?

CVE-2021-39473 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-2021-39473 affect?

CVE-2021-39473 affects hotelmanager. Severity is medium (CVSS 5.4). Saibamen HotelManager v1.2 is vulnerable to Cross Site Scripting (XSS) due to improper sanitization of comment and contact fields.

How urgent is CVE-2021-39473?

Priority 32/100. No elevated risk signals yet.

References

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