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6.5

Elog can be abused as an unauthenticated HTTP proxy

CVE-2019-3996 · published 6 years ago
Summary

The Elog web application (versions up to 3.1.4-57bea22) can be tricked into forwarding HTTP requests when it receives specially crafted POST messages. This lets anyone on the internet use your server to hide their traffic or reach internal resources. Upgrade to the latest release or apply the vendor’s fix and limit access to the service to trusted users.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
elog_project elog <= 3.1.4-57bea22
cpe:2.3:a:elog_project:elog:*:*:*:*:*:*:*:*
fedoraproject fedora 30
31
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
Original advisory text
ELOG 3.1.4-57bea22 and below can be used as an HTTP GET request proxy when unauthenticated remote attackers send crafted HTTP POST requests.
ELOG 3.1.4-57bea22 and below can be used as an HTTP GET request proxy when unauthenticated remote attackers send crafted HTTP POST requests.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
6.5 Medium
Exploitation
7% chance of attack within 30 days
Type
CWE-441Unintended Proxy or Intermediary ('Confused Deputy')
CWE-610Externally Controlled Reference to a Resource in Another Sphere
Timeline
Published17 Dec 2019
Updated20 Oct 2026
First seen29 Sep 2026
Sources
CVE-2019-3996 · NVD
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