How severe is CVE-2026-5551?

CVE-2026-5551 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-5551 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-5551?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-5551 have an EU (EUVD) identifier?

Yes. CVE-2026-5551 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19050.

When was CVE-2026-5551 published?

CVE-2026-5551 was published on 2026-04-05 and last updated on 2026-06-17.

CVE-2026-5551

CVE-2026-5551 is a high-severity vulnerability with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-74.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 7.5
CVSS v4: 5.5
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19050
Weakness: CWE-74
Published: 2026-04-05
Last modified: 2026-06-17

Description

A security flaw has been discovered in itsourcecode Free Hotel Reservation System 1.0. This vulnerability affects unknown code of the file /hotel/admin/login.php of the component Parameter Handler. The manipulation of the argument email results in sql injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

Frequently asked questions

What is CVE-2026-5551?: A security flaw has been discovered in itsourcecode Free Hotel Reservation System 1.0. This vulnerability affects unknown code of the file /hotel/admin/login.php of the component Parameter Handler. The manipulation of the argument email results in sql injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.
How severe is CVE-2026-5551?: CVE-2026-5551 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-5551 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-5551?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-5551 have an EU (EUVD) identifier?: Yes. CVE-2026-5551 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19050.
When was CVE-2026-5551 published?: CVE-2026-5551 was published on 2026-04-05 and last updated on 2026-06-17.

References

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