CVE-2023-38357

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2023-08-01. 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: 5%CVSS: 5.3Exploit: NoneExposed: 0

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

Session tokens in RWS WorldServer 11.7.3 and earlier have a low entropy and can be enumerated, leading to unauthorized access to user sessions.

CVSS v3
5.3
EG Score
5.3(medium)
EPSS
91.8%
KEV
Not listed

Published

August 1, 2023

Last Modified

November 21, 2024

References (6)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× 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. 2026-07-22 14:06 UTCEPSS rescore
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  68. 2026-05-24 20:22 UTCEG score recompute
  69. 2026-05-24 20:22 UTCGHSA enrichment
  70. 2026-05-24 16:52 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • Exploit-DBEDB-51619
    First seen Jul 20, 2023

    RWS WorldServer 11.7.3 - Session Token Enumeration

    Open source ↗

Frequently asked(5)

What is CVE-2023-38357?
CVE-2023-38357 is a medium vulnerability published on August 1, 2023. Session tokens in RWS WorldServer 11.7.3 and earlier have a low entropy and can be enumerated, leading to unauthorized access to user sessions.
When was CVE-2023-38357 disclosed?
CVE-2023-38357 was first published in the National Vulnerability Database on August 1, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-38357 actively exploited?
CVE-2023-38357 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 91.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-38357?
CVE-2023-38357 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2023-38357?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-38357, 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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