How severe is CVE-2026-34455?

CVE-2026-34455 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-34455 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34455?

CVE-2026-34455 affects Hi.events. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-34455?

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-2026-34455 have an EU (EUVD) identifier?

Yes. CVE-2026-34455 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18007.

When was CVE-2026-34455 published?

CVE-2026-34455 was published on 2026-04-01 and last updated on 2026-06-17.

CVE-2026-34455

CVE-2026-34455 is a high-severity vulnerability in Hi.events with a CVSS 3.x base score of 8.8. 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-89.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18007
Weakness: CWE-89
Affected product: Hi.events
Published: 2026-04-01
Last modified: 2026-06-17

Description

Hi.Events is an open-source event management and ticket selling platform. From version 0.8.0-beta.1 to before version 1.7.1-beta, multiple repository classes pass the user-supplied sort_by query parameter directly to Eloquent's orderBy() without validation, enabling SQL injection. The application uses PostgreSQL which supports stacked queries. This issue has been patched in version 1.7.1-beta.

Frequently asked questions

What is CVE-2026-34455?: Hi.Events is an open-source event management and ticket selling platform. From version 0.8.0-beta.1 to before version 1.7.1-beta, multiple repository classes pass the user-supplied sort_by query parameter directly to Eloquent's orderBy() without validation, enabling SQL injection. The application uses PostgreSQL which supports stacked queries. This issue has been patched in version 1.7.1-beta.
How severe is CVE-2026-34455?: CVE-2026-34455 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-34455 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34455?: CVE-2026-34455 affects Hi.events. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-34455?: 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-2026-34455 have an EU (EUVD) identifier?: Yes. CVE-2026-34455 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18007.
When was CVE-2026-34455 published?: CVE-2026-34455 was published on 2026-04-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hi.events:hi.events:*:*:*:*:*:*:*:*

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