How severe is CVE-2024-24399?

CVE-2024-24399 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-24399 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-24399?

CVE-2024-24399 affects Lepton-cms Leptoncms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-24399?

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.

Does CVE-2024-24399 have an EU (EUVD) identifier?

Yes. CVE-2024-24399 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-21818.

When was CVE-2024-24399 published?

CVE-2024-24399 was published on 2024-01-25 and last updated on 2026-06-17.

CVE-2024-24399

CVE-2024-24399 is a high-severity vulnerability in Lepton-cms Leptoncms with a CVSS 3.x base score of 7.2. Its EPSS exploit-prediction score of 16% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-434.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 16% (96th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-21818
Weakness: CWE-434
Affected product: Lepton-cms Leptoncms
Published: 2024-01-25
Last modified: 2026-06-17

Description

An arbitrary file upload vulnerability in LEPTON v7.0.0 allows authenticated attackers to execute arbitrary PHP code by uploading this code to the backend/languages/index.php languages area.

Frequently asked questions

What is CVE-2024-24399?: An arbitrary file upload vulnerability in LEPTON v7.0.0 allows authenticated attackers to execute arbitrary PHP code by uploading this code to the backend/languages/index.php languages area.
How severe is CVE-2024-24399?: CVE-2024-24399 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-24399 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-24399?: CVE-2024-24399 affects Lepton-cms Leptoncms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-24399?: 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.
Does CVE-2024-24399 have an EU (EUVD) identifier?: Yes. CVE-2024-24399 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-21818.
When was CVE-2024-24399 published?: CVE-2024-24399 was published on 2024-01-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:lepton-cms:leptoncms:7.0.0:*:*:*:*:*:*:*

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