UpHeron
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Servers and applications

CVE-2018-11494

The "program extension upload" feature in OpenCart through 3.0.2.0 has a six-step process (upload, install, unzip, move, xml, remove) that allows attackers to execute arbitrary code if the remove step is skipped, because the attacker can discover a secret temporary directory name (containing 10 random digits) via a directory traversal attack involving language_info['code'].

Severity
High 8.0
Published
26 May 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2.3% in the next 30 daysHigher than 83% of CVEs. EPSS by FIRST, 10 Nov 2026
Weakness
Path traversal (CWE-22)Unrestricted file upload (CWE-434)
Attack
Over the network · Only under certain conditions · Needs an administrator account · No user action needed
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
OpenCartServers and applications · cpe:a:opencart:opencart
  • Every version up to 3.0.2.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-11494
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-11494