CVE-2023-38357

MEDIUMNVD 5.35.3—Elevated

5.3

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: 88.9%
KEV: Not listed

Published

August 1, 2023

Last Modified

November 21, 2024

References (6)

cve@mitrehttp://packetstormsecurity.com/files/173609/RWS-WorldServer-11.7.3-Session-Token-Enumeration.html
cve@mitrehttp://seclists.org/fulldisclosure/2023/Jul/30
cve@mitrehttps://www.redteam-pentesting.de/en/advisories/rt-sa-2023-001/-session-token-enumeration-in-rws-worldserver
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/173609/RWS-WorldServer-11.7.3-Session-Token-Enumeration.html
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2023/Jul/30
af854a3a-2127-422b-91ae-364da2661108https://www.redteam-pentesting.de/en/advisories/rt-sa-2023-001/-session-token-enumeration-in-rws-worldserver

Weakness Classification(1)

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

CWE-331Insufficient Entropy

Data Freshness Timeline

(refreshed 14× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-24 20:22 UTCEG score recompute
2026-05-24 20:22 UTCGHSA enrichment

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 88.9% 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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