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TI-2023-27371 Aliases CVE-2023-50044GHSA-5x2j-8rm7-fm3j

Cesanta MJS 2.20.0 has a getprop_builtin_foreign out-of-bounds read if a Built-in API…

Priority MEDIUM 44CWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

Cesanta MJS 2.20.0 has a getprop_builtin_foreign out-of-bounds read if a Built-in API name occurs in a substring of an input string.

Why it matters now

EPSS 0.0086 58th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cesanta:mjs:2.22.0:*:*:*:*:*:*:*2.22.0VulnerableCesanta
  • cpe:2.3:a:cesanta:mjs:2.22.0:*:*:*:*:*:*:* Versions 2.22.0 Vulnerable ·Cesanta

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-50044
  2. 2026-10-03 Alias added: GHSA-5x2j-8rm7-fm3j

References

Exploit 1

Patch 1

  • TI-2023-23198 Cesanta mjs v2.20.0 was discovered to contain a function pointer hijacking vulnerability… CVSS 3.1CRITICAL 9.8
  • TI-2023-27057 An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via… CVSS 3.1HIGH 7.5
  • TI-2023-27055 An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via… CVSS 3.1HIGH 7.5
  • TI-2023-27054 An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs+0x4ec508 component. CVSS 3.1HIGH 7.5
  • TI-2023-27056 An Out of Bounds Write in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial… CVSS 3.1HIGH 7.5
  • TI-2023-27053 An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via… CVSS 3.1HIGH 7.5
See all 83 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences