Arbitrary file upload in Cleo Harmony
CVE-2024-50623
In Cleo Harmony before 5.8.0.21, VLTrader before 5.8.0.21, and LexiCom before 5.8.0.21, there is an unrestricted file upload and download that could lead to remote code execution.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.986 (99.9th percentile), scored .
Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 99.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.986 · newest: 0.986 · change: 0.000
Affected products
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- support.cleo.com/hc/en-us/articles/27140294267799-Cleo-Product-Security-Advisory (Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2024-50623?
- CVE-2024-50623 is a critical-severity vulnerability in Cleo Harmony, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2024-10-28.
- How severe is CVE-2024-50623?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2024-50623 known to be exploited?
- Yes. CVE-2024-50623 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-12-13), indicating it is being actively exploited. 14 public proof-of-concept repositories are indexed.