CVE-2023-42222

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2023-09-28. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, 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: 1%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

WebCatalog before 49.0 is vulnerable to Incorrect Access Control. WebCatalog calls the Electron shell.openExternal function without verifying that the URL is for an http or https resource, in some circumstances.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
60(Track)
EG Risk 60/100SSVC: 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
Severity88% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
70%
KEV
Not listed

Published

September 28, 2023

Last Modified

June 17, 2026

Advisory Details (3)

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

Security | Electron

https://www.electronjs.org/docs/latest/tutorial/security#15-do-not-use-shellopenexternal-with-untrusted-content
generic

GitHub - itssixtyn3in/CVE-2023-42222 · GitHub

https://github.com/itssixtyn3in/CVE-2023-42222
generic

Locked Out | Packet Storm

http://packetstormsecurity.com/files/176957/WebCatalog-48.4-Arbitrary-Protocol-Execution-Code-Execution.html

Data Freshness Timeline

(refreshed 7× in last 7d / 44× 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 121 total refreshes for this CVE.

  1. 2026-08-09 13:44 UTCEPSS rescore
  2. 2026-08-09 13:44 UTCEPSS rescore
  3. 2026-08-08 16:35 UTCEPSS rescore
  4. 2026-08-07 16:25 UTCEPSS rescore
  5. 2026-08-06 13:45 UTCEPSS rescore
  6. 2026-08-05 19:15 UTCEPSS rescore
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  8. 2026-08-03 10:34 UTCEPSS rescore
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  10. 2026-08-02 02:25 UTCEPSS rescore
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  12. 2026-08-01 04:14 UTCEPSS rescore
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  14. 2026-07-30 16:26 UTCEPSS rescore
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  16. 2026-07-30 01:28 UTCEPSS rescore
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  18. 2026-07-28 15:34 UTCEPSS rescore
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  20. 2026-07-26 14:52 UTCEPSS rescore
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  22. 2026-07-25 14:16 UTCEPSS rescore
  23. 2026-07-24 14:16 UTCEPSS rescore
  24. 2026-07-23 14:16 UTCEPSS rescore
  25. 2026-07-23 14:16 UTCEPSS rescore
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  1. 2026-07-23 02:26 UTCEG score recompute
  2. 2026-07-22 23:13 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
  4. 2026-07-21 15:23 UTCEPSS rescore
  5. 2026-07-21 15:23 UTCEPSS rescore
  6. 2026-07-20 17:06 UTCEPSS rescore
  7. 2026-07-19 14:29 UTCEPSS rescore
  8. 2026-07-19 02:27 UTCEPSS rescore
  9. 2026-07-18 10:03 UTCEPSS rescore
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  11. 2026-07-16 17:01 UTCEPSS rescore
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  13. 2026-07-15 16:56 UTCEPSS rescore
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  15. 2026-07-15 01:58 UTCEPSS rescore
  16. 2026-07-13 22:28 UTCEPSS rescore
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  18. 2026-07-13 06:11 UTCEPSS rescore
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  20. 2026-07-12 05:45 UTCEPSS rescore
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  22. 2026-07-11 08:26 UTCEPSS rescore
  23. 2026-07-11 08:26 UTCEPSS rescore
  24. 2026-07-09 19:08 UTCEPSS rescore
  25. 2026-07-08 15:13 UTCEPSS rescore
  26. 2026-07-07 13:44 UTCEPSS rescore
  27. 2026-07-06 16:26 UTCEPSS rescore
  28. 2026-07-06 16:26 UTCEPSS rescore
  29. 2026-07-06 02:22 UTCEPSS rescore
  30. 2026-07-05 02:29 UTCEPSS rescore
  31. 2026-07-04 06:29 UTCEPSS rescore
  32. 2026-07-01 15:05 UTCEPSS rescore
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  35. 2026-06-28 14:06 UTCEPSS rescore
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  37. 2026-06-28 04:55 UTCEPSS rescore
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  39. 2026-06-27 03:07 UTCEPSS rescore
  40. 2026-06-27 03:07 UTCEPSS rescore
  41. 2026-06-25 13:48 UTCEPSS rescore
  42. 2026-06-25 13:48 UTCEPSS rescore
  43. 2026-06-24 14:04 UTCEPSS rescore
  44. 2026-06-24 14:04 UTCEPSS rescore
  45. 2026-06-23 21:31 UTCEPSS rescore
  46. 2026-06-23 21:31 UTCEPSS rescore
  47. 2026-06-22 14:24 UTCEPSS rescore
  48. 2026-06-22 14:24 UTCEPSS rescore
  49. 2026-06-21 14:55 UTCEPSS rescore
  50. 2026-06-21 14:55 UTCEPSS rescore
  51. 2026-06-21 01:58 UTCEPSS rescore
  52. 2026-06-21 01:58 UTCEPSS rescore
  53. 2026-06-19 19:24 UTCEPSS rescore
  54. 2026-06-19 19:24 UTCEPSS rescore
  55. 2026-06-18 17:51 UTCEPSS rescore
  56. 2026-06-17 17:51 UTCEPSS rescore
  57. 2026-06-17 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. 2026-06-15 17:47 UTCEPSS rescore
  62. 2026-06-13 22:59 UTCEPSS rescore
  63. 2026-06-13 22:59 UTCEPSS rescore
  64. 2026-06-12 23:10 UTCEPSS rescore
  65. 2026-06-12 23:10 UTCEPSS rescore
  66. 2026-06-11 13:59 UTCEPSS rescore
  67. 2026-06-11 13:59 UTCEPSS rescore
  68. 2026-06-10 22:17 UTCEPSS rescore
  69. 2026-06-10 13:21 UTCEPSS rescore
  70. 2026-06-10 13:21 UTCEPSS rescore
  71. 2026-06-05 22:46 UTCEPSS rescore
  72. 2026-06-05 22:46 UTCEPSS rescore
  73. 2026-06-05 06:09 UTCEPSS rescore
  74. 2026-06-05 06:09 UTCEPSS rescore
  75. 2026-06-05 06:09 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • GitHub PoCitssixtyn3in/CVE-2023-42222
    First seen Sep 27, 2023
    Open source ↗

Frequently asked(5)

What is CVE-2023-42222?
CVE-2023-42222 is a high vulnerability published on September 28, 2023. WebCatalog before 49.0 is vulnerable to Incorrect Access Control. WebCatalog calls the Electron shell.openExternal function without verifying that the URL is for an http or https resource, in some circumstances.
When was CVE-2023-42222 disclosed?
CVE-2023-42222 was first published in the National Vulnerability Database on September 28, 2023, 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-2023-42222 actively exploited?
CVE-2023-42222 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 29.7% of all scored CVEs.
What is the CVSS score of CVE-2023-42222?
CVE-2023-42222 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2023-42222?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-42222, 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.

Dependency Blast Radius

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