CVE-2026-3187

MEDIUMNVD 9.86.3▼
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory published 2026-02-25. NVD baseline CVSS 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
6.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

A vulnerability was identified in feiyuchuixue sz-boot-parent up to 1.3.2-beta. Affected by this issue is some unknown functionality of the file /api/admin/sys-file/upload of the component API Endpoint. Such manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit is publicly available and might be used. Upgrading to version 1.3.3-beta can resolve this issue. The name of the patch is aefaabfd7527188bfba3c8c9eee17c316d094802. Upgrading the affected component is recommended. The project was informed beforehand and acted very professional: "We have introduced a whitelist restriction on the /api/admin/sys-file/upload endpoint via the oss.allowedExts and oss.allowedMimeTypes configuration options, allowing the specification of permitted file extensions and MIME types for uploads."

CVSS v3
9.8
EG Score
6.3(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

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
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

February 25, 2026

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Jul 27, 2026
Patch available. Sources: github_commit, github_release.
generic

CVE/sz-boot-parent-Arbitrary_File_Upload.md at main · yuccun/CVE · GitHub

https://github.com/yuccun/CVE/blob/main/sz-boot-parent-Arbitrary_File_Upload.md
github_release Patch Available

v1.3.3-beta

Patch available: feiyuchuixue/sz-boot-parent v1.3.3-beta

https://github.com/feiyuchuixue/sz-boot-parent/releases/tag/v1.3.3-beta
github_commit Patch Available

commit aefaabfd7527 (feiyuchuixue/sz-boot-parent)

Patch available: feiyuchuixue/sz-boot-parent v1.3.3-beta (contains commit aefaabfd7527)

https://github.com/feiyuchuixue/sz-boot-parent/commit/aefaabfd7527188bfba3c8c9eee17c316d094802
generic

GitHub - feiyuchuixue/sz-boot-parent: Backend scaffold for Sz-Admin, built with Spring Boot 4, featuring RBAC, dynamic menus, code generation, data scope permissions, Excel import/export, OSS integration, and WebSocket support. · GitHub

https://github.com/feiyuchuixue/sz-boot-parent/

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 38× 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 105 total refreshes for this CVE.

  1. 2026-07-27 14:13 UTCEPSS rescore
  2. 2026-07-26 14:54 UTCEPSS rescore
  3. 2026-07-26 14:54 UTCEPSS rescore
  4. 2026-07-25 14:18 UTCEPSS rescore
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  10. 2026-07-23 03:08 UTCEG score recompute
  11. 2026-07-22 14:08 UTCEPSS rescore
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  17. 2026-07-17 11:29 UTCOSV refresh
  18. 2026-07-16 17:03 UTCEPSS rescore
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  1. 2026-07-11 08:27 UTCEPSS rescore
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  11. 2026-06-30 23:22 UTCEPSS rescore
  12. 2026-06-29 14:06 UTCEPSS rescore
  13. 2026-06-29 09:32 UTCOSV refresh
  14. 2026-06-28 14:07 UTCEPSS rescore
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  20. 2026-06-23 21:33 UTCEPSS rescore
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  23. 2026-06-21 14:56 UTCEPSS rescore
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  25. 2026-06-21 01:59 UTCEPSS rescore
  26. 2026-06-19 19:25 UTCEPSS rescore
  27. 2026-06-18 17:52 UTCEPSS rescore
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  36. 2026-06-12 01:47 UTCGHSA enrichment
  37. 2026-06-11 14:00 UTCEPSS rescore
  38. 2026-06-10 22:18 UTCEPSS rescore
  39. 2026-06-10 19:27 UTCGHSA enrichment
  40. 2026-06-10 13:22 UTCEPSS rescore
  41. 2026-06-09 18:22 UTCGHSA enrichment
  42. 2026-06-08 14:17 UTCEPSS rescore
  43. 2026-06-08 14:17 UTCEPSS rescore
  44. 2026-06-07 16:30 UTCGHSA enrichment
  45. 2026-06-07 15:25 UTCEPSS rescore
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  47. 2026-06-07 15:25 UTCEPSS rescore
  48. 2026-06-06 13:47 UTCEPSS rescore
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  50. 2026-06-05 22:47 UTCEPSS rescore
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  52. 2026-06-05 06:10 UTCEPSS rescore
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  54. 2026-06-04 13:12 UTCEPSS rescore
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  57. 2026-06-01 13:52 UTCEPSS rescore
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  60. 2026-06-01 12:13 UTCOSV refresh
  61. 2026-05-31 00:16 UTCEPSS rescore
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  64. 2026-05-29 13:44 UTCEPSS rescore
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  66. 2026-05-28 13:44 UTCEPSS rescore
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  73. 2026-05-26 07:18 UTCEPSS rescore
  74. 2026-05-26 07:18 UTCEPSS rescore
  75. 2026-05-20 22:38 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-3187?
CVE-2026-3187 is a medium vulnerability published on February 25, 2026. A vulnerability was identified in feiyuchuixue sz-boot-parent up to 1.3.2-beta. Affected by this issue is some unknown functionality of the file /api/admin/sys-file/upload of the component API Endpoint. Such manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit…
When was CVE-2026-3187 disclosed?
CVE-2026-3187 was first published in the National Vulnerability Database on February 25, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-3187 actively exploited?
CVE-2026-3187 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 77.0% of all scored CVEs.
What is the CVSS score of CVE-2026-3187?
CVE-2026-3187 has a CVSS v3 base score of 9.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 6.3.
How do I remediate CVE-2026-3187?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-3187, 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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