How severe is CVE-2023-26817?

CVE-2023-26817 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-26817 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26817?

CVE-2023-26817 affects Pgyer Codefever. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-26817?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-26817 published?

CVE-2023-26817 was published on 2023-04-07 and last updated on 2026-06-17.

CVE-2023-26817

CVE-2023-26817 is a high-severity vulnerability in Pgyer Codefever with a CVSS 3.x base score of 8.8. 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-94.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 2% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Pgyer Codefever
Published: 2023-04-07
Last modified: 2026-06-17

Description

codefever before 2023.2.7-commit-b1c2e7f was discovered to contain a remote code execution (RCE) vulnerability via the component /controllers/api/user.php.

Frequently asked questions

What is CVE-2023-26817?: codefever before 2023.2.7-commit-b1c2e7f was discovered to contain a remote code execution (RCE) vulnerability via the component /controllers/api/user.php.
How severe is CVE-2023-26817?: CVE-2023-26817 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-26817 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26817?: CVE-2023-26817 affects Pgyer Codefever. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-26817?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-26817 published?: CVE-2023-26817 was published on 2023-04-07 and last updated on 2026-06-17.

References

https://github.com/PGYER/codefever/issues/140

Affected products (1)

cpe:2.3:a:pgyer:codefever:*:*:*:*:*:*:*:*

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