How severe is CVE-2023-38357?

CVE-2023-38357 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-38357 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-38357?

CVE-2023-38357 affects Rws Worldserver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-38357?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-38357 published?

CVE-2023-38357 was published on 2023-08-01 and last updated on 2026-06-17.

CVE-2023-38357

CVE-2023-38357 is a medium-severity vulnerability in Rws Worldserver with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-331.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-331
Affected product: Rws Worldserver
Published: 2023-08-01
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-38357?: 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.
How severe is CVE-2023-38357?: CVE-2023-38357 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-38357 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-38357?: CVE-2023-38357 affects Rws Worldserver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-38357?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-38357 published?: CVE-2023-38357 was published on 2023-08-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rws:worldserver:*:*:*:*:*:*:*:*

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