CVE-2023-38836

HIGHNVD 8.88.9▲
EchelonGraph scoreHIGH confidence

Score elevated to 8.9 because EPSS predicts 69% probability of exploitation within the next 30 days (top 0.7% of all CVEs). NVD baseline CVSS 8.8 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Weaponized
8.9EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 76%
  • Public exploit code is available (Metasploit, ssvc poc, epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 76%CVSS: 8.8Exploit: Metasploit · ssvc poc · epss top5pct · epss high · public exploitExposed: 0

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

File Upload vulnerability in BoidCMS v.2.0.0 allows a remote attacker to execute arbitrary code by adding a GIF header to bypass MIME type checks.

CVSS v3
8.8
EG Score
8.9(high)
EG Risk
68(Track*)
EG Risk 68/100SSVC: 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
Severity89% × 45%
Exploitation69% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
76%
EPSS %ILE
100%
KEV
Not listed

Published

August 21, 2023

Last Modified

July 9, 2026

Advisory Details (1)

Auto-updated Jul 6, 2026
No patch confirmed yet.
generic

[VULNERABILITY] Authenticated file upload vulnerability - [leading to shell command execution] · Issue #27 · BoidCMS/BoidCMS · GitHub

https://github.com/BoidCMS/BoidCMS/issues/27

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 2× in last 7d / 20× 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 113 total refreshes for this CVE.

  1. 2026-09-20 20:14 UTCEPSS rescore
  2. 2026-09-16 14:05 UTCEPSS rescore
  3. 2026-09-13 16:44 UTCEPSS rescore
  4. 2026-09-12 14:58 UTCEPSS rescore
  5. 2026-09-11 09:34 UTCEPSS rescore
  6. 2026-09-08 21:57 UTCEPSS rescore
  7. 2026-09-06 13:45 UTCEPSS rescore
  8. 2026-09-05 15:26 UTCEPSS rescore
  9. 2026-09-04 13:58 UTCEPSS rescore
  10. 2026-09-04 05:04 UTCEPSS rescore
  11. 2026-09-03 20:29 UTCOSV refresh
  12. 2026-09-02 14:09 UTCEPSS rescore
  13. 2026-08-30 19:15 UTCEPSS rescore
  14. 2026-08-30 01:20 UTCEPSS rescore
  15. 2026-08-28 21:38 UTCEPSS rescore
  16. 2026-08-27 14:23 UTCEPSS rescore
  17. 2026-08-26 14:43 UTCEPSS rescore
  18. 2026-08-25 13:46 UTCEPSS rescore
  19. 2026-08-24 14:14 UTCEPSS rescore
  20. 2026-08-23 00:17 UTCEPSS rescore
  21. 2026-08-21 23:47 UTCEPSS rescore
  22. 2026-08-20 22:53 UTCEPSS rescore
  23. 2026-08-19 17:02 UTCEPSS rescore
  24. 2026-08-18 13:46 UTCEPSS rescore
  25. 2026-08-17 09:38 UTCOSV refresh
Show 75 more
  1. 2026-08-16 02:12 UTCEPSS rescore
  2. 2026-08-15 01:28 UTCEPSS rescore
  3. 2026-08-12 13:48 UTCEPSS rescore
  4. 2026-08-11 13:39 UTCEPSS rescore
  5. 2026-08-08 16:34 UTCEPSS rescore
  6. 2026-08-07 16:24 UTCEPSS rescore
  7. 2026-08-06 13:44 UTCEPSS rescore
  8. 2026-08-04 10:35 UTCEPSS rescore
  9. 2026-08-02 04:17 UTCOSV refresh
  10. 2026-08-01 04:13 UTCEPSS rescore
  11. 2026-07-30 16:26 UTCEPSS rescore
  12. 2026-07-30 16:26 UTCEPSS rescore
  13. 2026-07-28 15:34 UTCEPSS rescore
  14. 2026-07-26 14:52 UTCEPSS rescore
  15. 2026-07-25 14:16 UTCEPSS rescore
  16. 2026-07-24 14:16 UTCEPSS rescore
  17. 2026-07-23 02:25 UTCEG score recompute▲ 0.10
  18. 2026-07-22 23:11 UTCEG score recompute▼ 0.20
  19. 2026-07-22 14:06 UTCEPSS rescore
  20. 2026-07-21 15:23 UTCEPSS rescore
  21. 2026-07-21 15:23 UTCEPSS rescore
  22. 2026-07-20 17:06 UTCEPSS rescore
  23. 2026-07-19 14:29 UTCEPSS rescore
  24. 2026-07-19 14:29 UTCEPSS rescore
  25. 2026-07-18 10:03 UTCEPSS rescore
  26. 2026-07-18 10:03 UTCEPSS rescore
  27. 2026-07-15 16:56 UTCEPSS rescore
  28. 2026-07-15 16:56 UTCEPSS rescore
  29. 2026-07-15 11:49 UTCOSV refresh
  30. 2026-07-13 22:28 UTCEPSS rescore
  31. 2026-07-13 22:28 UTCEPSS rescore
  32. 2026-07-13 06:11 UTCEPSS rescore
  33. 2026-07-13 06:11 UTCEPSS rescore
  34. 2026-07-11 08:26 UTCEPSS rescore
  35. 2026-07-11 08:25 UTCEPSS rescore
  36. 2026-07-09 19:08 UTCEPSS rescore
  37. 2026-07-09 19:08 UTCEPSS rescore
  38. 2026-07-09 02:56 UTCNVD updateCVSS v3 → 8.8 · severity → HIGH
  39. 2026-07-09 01:24 UTCMITRE cvelistV5
  40. 2026-07-04 06:29 UTCEPSS rescore
  41. 2026-07-02 16:59 UTCEPSS rescore
  42. 2026-07-01 15:04 UTCEPSS rescore
  43. 2026-06-28 14:06 UTCEPSS rescore
  44. 2026-06-28 14:06 UTCEPSS rescore
  45. 2026-06-28 04:55 UTCEPSS rescore
  46. 2026-06-28 04:55 UTCEPSS rescore
  47. 2026-06-27 12:04 UTCOSV refresh
  48. 2026-06-25 13:48 UTCEPSS rescore
  49. 2026-06-25 13:48 UTCEPSS rescore
  50. 2026-06-24 14:04 UTCEPSS rescore
  51. 2026-06-24 14:03 UTCEPSS rescore
  52. 2026-06-23 21:31 UTCEPSS rescore
  53. 2026-06-23 21:31 UTCEPSS rescore
  54. 2026-06-21 14:55 UTCEPSS rescore
  55. 2026-06-21 14:55 UTCEPSS rescore
  56. 2026-06-18 17:51 UTCEPSS rescore
  57. 2026-06-18 17:51 UTCEPSS rescore
  58. 2026-06-16 17:51 UTCEPSS rescore
  59. 2026-06-16 17:51 UTCEPSS rescore
  60. 2026-06-15 17:47 UTCEPSS rescore
  61. 2026-06-13 22:59 UTCEPSS rescore
  62. 2026-06-13 22:59 UTCEPSS rescore
  63. 2026-06-12 23:10 UTCEPSS rescore
  64. 2026-06-12 23:10 UTCEPSS rescore
  65. 2026-06-10 22:17 UTCEPSS rescore
  66. 2026-06-10 13:21 UTCEPSS rescore
  67. 2026-06-09 22:47 UTCOSV refresh
  68. 2026-06-08 14:16 UTCEPSS rescore
  69. 2026-06-08 14:15 UTCEPSS rescore
  70. 2026-06-07 15:23 UTCEPSS rescore
  71. 2026-06-07 15:23 UTCEPSS rescore
  72. 2026-06-05 22:46 UTCEPSS rescore
  73. 2026-06-05 22:46 UTCEPSS rescore
  74. 2026-06-05 06:09 UTCEPSS rescore
  75. 2026-06-05 06:09 UTCEPSS rescore

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (1 GitHub PoC) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-51741
    First seen Oct 9, 2023

    BoidCMS v2.0.0 - authenticated file upload vulnerability

    Open source ↗
  • GitHub PoC1337kid/CVE-2023-38836
    First seen Aug 16, 2023

    PoC exploit for file upload vulnerability in BoidCMS version <=2.0.0

    Open source ↗
  • Metasploitexploit/multi/http/cve_2023_38836_boidcms✓ verified
    First seen Jul 13, 2023

    BoidCMS Command Injection

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-38836?
CVE-2023-38836 is a high vulnerability published on August 21, 2023. File Upload vulnerability in BoidCMS v.2.0.0 allows a remote attacker to execute arbitrary code by adding a GIF header to bypass MIME type checks.
When was CVE-2023-38836 disclosed?
CVE-2023-38836 was first published in the National Vulnerability Database on August 21, 2023, with the most recent update on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-38836 actively exploited?
CVE-2023-38836 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 76% probability of exploitation in the next 30 days, which ranks it in the top 0.5% of all scored CVEs.
What is the CVSS score of CVE-2023-38836?
CVE-2023-38836 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.9.
How do I remediate CVE-2023-38836?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-38836, 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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