CVE-2021-33948: SQL injection vulnerability in FantasticLBP Hotels Server v1.0 allows attacker to execute arbitrary code via t

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2021-33948 is a critical-severity flaw (CVSS 9.8) affecting hotels server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in FantasticLBP Hotels Server v1.0 allows attacker to execute arbitrary code via the username parameter.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-89
Published	2023-02-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: hotels server project

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

Am I affected?

Timeline

2023-02-17 18:15 UTCPublished CVE record published
2026-06-17 03:55 UTCUpdated Record last modified

hotels server project hotels server DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy hotels-server || rpm -q hotels-server || hotels-server --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison hotels-server sudo apt install hotels-server=<VERSION_BEFORE_1.0> sudo apt-mark hold hotels-server

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

dnf --showduplicates list hotels-server sudo dnf downgrade hotels-server-<VERSION_BEFORE_1.0> sudo dnf versionlock add hotels-server

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-2021-33948?

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

Is CVE-2021-33948 being exploited?

CVE-2021-33948 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-2021-33948 affect?

CVE-2021-33948 affects hotels server. Severity is critical (CVSS 9.8). SQL injection vulnerability in FantasticLBP Hotels Server v1.0 allows attacker to execute arbitrary code via the username parameter.

How urgent is CVE-2021-33948?

Priority 59/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-14710 HIGH 7.3 UPGRADE A vulnerability was detected in FantasticLBP Hotels Server up to 67b44df162fab26df209bd5d5d542875fcbec1d0
CVE-2025-14711 HIGH 7.3 UPGRADE A flaw has been found in FantasticLBP Hotels Server up to 67b44df162fab26df209bd5d5d542875fcbec1d0
CVE-2025-15127 HIGH 7.3 UPGRADE A security vulnerability has been detected in FantasticLBP Hotels_Server up to 67b44df162fab26df209bd5d5d54287

References

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