CVE-2026-5666

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-04-06. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: NoneExposed: 0

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

A vulnerability was detected in code-projects Online FIR System 1.0. Affected by this issue is some unknown functionality of the file /complaints.sql of the component SQL Database Backup File Handler. The manipulation results in insecure storage of sensitive information. The attack may be performed from remote. The exploit is now public and may be used.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
55(Attend)
EG Risk 55/100SSVC: 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
Severity53% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
22.4%
KEV
Not listed

Published

April 6, 2026

Last Modified

April 27, 2026

References (5)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 45× 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.

  1. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 14:18 UTCEPSS rescore
  3. 2026-07-23 03:20 UTCEG score recompute
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  1. 2026-07-07 13:46 UTCEPSS rescore
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  3. 2026-07-06 16:27 UTCEPSS rescore
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  39. 2026-06-11 21:37 UTCGHSA enrichment
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  41. 2026-06-10 22:19 UTCEPSS rescore
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  43. 2026-06-10 11:47 UTCGHSA enrichment
  44. 2026-06-09 14:07 UTCGHSA enrichment
  45. 2026-06-08 14:17 UTCEPSS rescore
  46. 2026-06-08 08:11 UTCGHSA enrichment
  47. 2026-06-07 15:25 UTCEPSS rescore
  48. 2026-06-07 10:30 UTCGHSA enrichment
  49. 2026-06-05 22:47 UTCEPSS rescore
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  52. 2026-06-04 13:12 UTCEPSS rescore
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  68. 2026-05-26 07:18 UTCEPSS rescore
  69. 2026-05-21 22:43 UTCEPSS rescore
  70. 2026-05-20 22:38 UTCEPSS rescore
  71. 2026-05-20 18:54 UTCEG score recompute
  72. 2026-05-20 18:54 UTCGHSA enrichment
  73. 2026-05-20 11:22 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-5666?
CVE-2026-5666 is a medium vulnerability published on April 6, 2026. A vulnerability was detected in code-projects Online FIR System 1.0. Affected by this issue is some unknown functionality of the file /complaints.sql of the component SQL Database Backup File Handler. The manipulation results in insecure storage of sensitive information. The attack may be performed…
When was CVE-2026-5666 disclosed?
CVE-2026-5666 was first published in the National Vulnerability Database on April 6, 2026, with the most recent update on April 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-5666 actively exploited?
CVE-2026-5666 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-5666?
CVE-2026-5666 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-5666?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5666, 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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