How severe is CVE-2023-40023?

CVE-2023-40023 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-40023 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40023?

CVE-2023-40023 primarily affects Yaklang. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-40023?

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

When was CVE-2023-40023 published?

CVE-2023-40023 was published on 2023-08-14 and last updated on 2026-06-17.

CVE-2023-40023

CVE-2023-40023 is a medium-severity vulnerability in Yaklang with a CVSS 3.x base score of 6.5. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Yaklang
Published: 2023-08-14
Last modified: 2026-06-17

Description

yaklang is a programming language designed for cybersecurity. The Yak Engine has been found to contain a local file inclusion (LFI) vulnerability. This vulnerability allows attackers to include files from the server's local file system through the web application. When exploited, this can lead to the unintended exposure of sensitive data, potential remote code execution, or other security breaches. Users utilizing versions of the Yak Engine prior to 1.2.4-sp1 are impacted. This vulnerability has been patched in version 1.2.4-sp1. Users are advised to upgrade. users unable to upgrade may avoid exposing vulnerable versions to untrusted input and to closely monitor any unexpected server behavior until they can upgrade.

Frequently asked questions

What is CVE-2023-40023?: yaklang is a programming language designed for cybersecurity. The Yak Engine has been found to contain a local file inclusion (LFI) vulnerability. This vulnerability allows attackers to include files from the server's local file system through the web application. When exploited, this can lead to the unintended exposure of sensitive data, potential remote code execution, or other security breaches. Users utilizing versions of the Yak Engine prior to 1.2.4-sp1 are impacted. This vulnerability has been patched in version 1.2.4-sp1. Users are advised to upgrade. users unable to upgrade may avoid exposing vulnerable versions to untrusted input and to closely monitor any unexpected server behavior until they can upgrade.
How severe is CVE-2023-40023?: CVE-2023-40023 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-40023 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40023?: CVE-2023-40023 primarily affects Yaklang. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-40023?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-40023 published?: CVE-2023-40023 was published on 2023-08-14 and last updated on 2026-06-17.

References

Affected products (26)

cpe:2.3:a:yaklang:yaklang:1.2.0:sp6:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.0:sp7:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.0:sp8:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.1:-:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.1:sp1:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.1:sp2:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.1:sp3:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.1:sp4:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.1:sp5:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.1:sp6:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.1:sp7:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.1:sp8:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.1:sp9:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.2:-:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.2:sp1:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.2:sp2:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.2:sp3:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.2:sp4:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.2:sp5:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.2:sp6:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.2:sp7:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.3:-:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.3:sp1:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.3:sp2:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.3:sp3:*:*:*:*:*:*
cpe:2.3:a:yaklang:yaklang:1.2.4:-:*:*:*:*:*:*

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