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VulnerabilityPublished Updated

CVE-2024-24399: LEPTON · An Arbitrary File Upload

Source CVE Database V5

0

Not known to be exploited · 15% EPSS · CVSS 7.2 High.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
7.2High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
15.5% chance of exploitation in 30 days – higher than 96% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Jan 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
GitHubcapture0x/leptoncmspkg:github/capture0x/leptoncmsOther threatsAffected
  • =7.0.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

European organizations should immediately audit their use of LEPTON CMS or related systems to identify any instances of version 7.0.0. Until an official patch is released, organizations should implement strict access controls and monitor authentication logs for suspicious activity. Restrict backend access to trusted IP ranges and enforce multi-factor authentication to reduce the risk of credential compromise. Employ web application firewalls (WAFs) with rules to detect and block file upload attempts to the backend/languages/index.php path. Conduct code reviews and penetration testing focused on file upload functionality. Additionally, implement file integrity monitoring on backend directories to detect unauthorized changes. Organizations should also prepare incident response plans specific to web shell or PHP code execution scenarios. Once a patch or vendor guidance is available, prioritize immediate deployment. Finally, consider isolating LEPTON instances in segmented network zones to limit lateral movement in case of compromise.

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.

References

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