Arbitrary file upload in 3cx Live Chat
CVE-2018-12426
The WP Live Chat Support Pro plugin before 8.0.07 for WordPress is vulnerable to unauthenticated Remote Code Execution due to client-side validation of allowed file types, as demonstrated by a v1/remote_upload request with a .php filename and the image/jpeg content type.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.051 (92.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.051 · newest: 0.051 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/RiieCco/write-ups/tree/master/CVE-2018-12426 (Exploit, Third Party Advisory)
- github.com/CodeCabin/wp-live-chat-support/blob/master/readme.txt (Third Party Advisory)
- wpvulndb.com/vulnerabilities/9697
Frequently asked questions
- What is CVE-2018-12426?
- CVE-2018-12426 is a critical-severity vulnerability in 3cx Live Chat, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2018-07-02.
- How severe is CVE-2018-12426?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-12426 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.