CVE-2026-34455

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 72% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
71(Attend)
EG Risk 71/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

April 1, 2026

Last Modified

April 15, 2026

Advisory Details (4)

Auto-updated Jun 7, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github_release, github.
github Patch Available🟡 PoC Available

SQL Injection via Unvalidated sort_by Query Parameter in Multiple Repository Classes · Advisory · HiEventsDev/Hi.Events · GitHub

https://github.com/HiEventsDev/Hi.Events/security/advisories/GHSA-2qcp-24fh-fx6p
github_release Patch Available

v1.7.1-beta

Patch available: HiEventsDev/Hi.Events v1.7.1-beta

https://github.com/HiEventsDev/Hi.Events/releases/tag/v1.7.1-beta
github_pr Patch Available

fix: Validate sort_by parameter against allowlist in repositories

Patch available: HiEventsDev/Hi.Events v1.7.1-beta (PR #1128 merged 2026-03-28)

https://github.com/HiEventsDev/Hi.Events/pull/1128
github_commit Patch Available

commit 01e1aee28d72 (HiEventsDev/Hi.Events)

Patch available: HiEventsDev/Hi.Events v1.7.1-beta (contains commit 01e1aee28d72)

https://github.com/HiEventsDev/Hi.Events/commit/01e1aee28d7249f235fdcca8e3a34e88214dcde9

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 29× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 161 total refreshes for this CVE.

  1. 2026-09-15 03:11 UTCEPSS rescore
  2. 2026-09-13 16:47 UTCEPSS rescore
  3. 2026-09-12 15:01 UTCEPSS rescore
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  11. 2026-09-02 14:12 UTCEPSS rescore
  12. 2026-09-02 11:44 UTCOSV refresh
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  1. 2026-08-18 13:48 UTCEPSS rescore
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  3. 2026-08-16 14:56 UTCEPSS rescore
  4. 2026-08-16 09:29 UTCEG score recompute
  5. 2026-08-16 02:14 UTCEPSS rescore
  6. 2026-08-15 01:30 UTCEPSS rescore
  7. 2026-08-14 05:55 UTCEG score recompute
  8. 2026-08-13 22:00 UTCEPSS rescore
  9. 2026-08-12 20:11 UTCEG score recompute
  10. 2026-08-12 13:50 UTCEPSS rescore
  11. 2026-08-11 20:33 UTCEG score recompute
  12. 2026-08-11 03:32 UTCEG score recompute
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  14. 2026-08-09 16:25 UTCEG score recompute
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  20. 2026-08-06 13:46 UTCEPSS rescore
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  22. 2026-08-05 19:17 UTCEPSS rescore
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  25. 2026-08-03 22:49 UTCEG score recompute
  26. 2026-08-03 10:36 UTCEPSS rescore
  27. 2026-08-02 14:46 UTCEG score recompute
  28. 2026-08-02 02:27 UTCEPSS rescore
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  39. 2026-07-23 14:18 UTCEPSS rescore
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  41. 2026-07-23 03:09 UTCEG score recompute
  42. 2026-07-22 14:08 UTCEPSS rescore
  43. 2026-07-20 17:08 UTCEPSS rescore
  44. 2026-07-19 14:31 UTCEPSS rescore
  45. 2026-07-19 02:29 UTCEPSS rescore
  46. 2026-07-18 10:04 UTCEPSS rescore
  47. 2026-07-17 03:54 UTCOSV refresh
  48. 2026-07-16 17:03 UTCEPSS rescore
  49. 2026-07-15 16:57 UTCEPSS rescore
  50. 2026-07-15 16:57 UTCEPSS rescore
  51. 2026-07-15 02:00 UTCEPSS rescore
  52. 2026-07-13 22:30 UTCEPSS rescore
  53. 2026-07-13 06:13 UTCEPSS rescore
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  55. 2026-07-12 05:46 UTCEPSS rescore
  56. 2026-07-11 08:27 UTCEPSS rescore
  57. 2026-07-09 19:10 UTCEPSS rescore
  58. 2026-07-08 15:15 UTCEPSS rescore
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  67. 2026-06-30 23:22 UTCEPSS rescore
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  72. 2026-06-28 04:56 UTCEPSS rescore
  73. 2026-06-28 04:56 UTCEPSS rescore
  74. 2026-06-27 03:08 UTCEPSS rescore
  75. 2026-06-25 13:49 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-34455?
CVE-2026-34455 is a high vulnerability published on April 1, 2026. 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…
When was CVE-2026-34455 disclosed?
CVE-2026-34455 was first published in the National Vulnerability Database on April 1, 2026, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34455 actively exploited?
CVE-2026-34455 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 71.7% of all scored CVEs.
What is the CVSS score of CVE-2026-34455?
CVE-2026-34455 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-34455?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34455, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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