How severe is CVE-2023-5223?

CVE-2023-5223 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2023-5223 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5223?

CVE-2023-5223 affects Hdoi Hcode Online Judge. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-5223?

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

When was CVE-2023-5223 published?

CVE-2023-5223 was published on 2023-09-27 and last updated on 2026-06-17.

CVE-2023-5223

CVE-2023-5223 is a medium-severity vulnerability in Hdoi Hcode Online Judge with a CVSS 3.x base score of 6.3. 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-265.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-265
Affected product: Hdoi Hcode Online Judge
Published: 2023-09-27
Last modified: 2026-06-17

Description

A vulnerability, which was classified as critical, has been found in HimitZH HOJ up to 4.6-9a65e3f. This issue affects some unknown processing of the component Topic Handler. The manipulation leads to sandbox issue. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-240365 was assigned to this vulnerability.

Frequently asked questions

What is CVE-2023-5223?: A vulnerability, which was classified as critical, has been found in HimitZH HOJ up to 4.6-9a65e3f. This issue affects some unknown processing of the component Topic Handler. The manipulation leads to sandbox issue. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-240365 was assigned to this vulnerability.
How severe is CVE-2023-5223?: CVE-2023-5223 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2023-5223 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5223?: CVE-2023-5223 affects Hdoi Hcode Online Judge. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5223?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-5223 published?: CVE-2023-5223 was published on 2023-09-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hdoi:hcode_online_judge:4.6-9a65e3f:*:*:*:*:*:*:*

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