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Servers and applications

CVE-2018-3814

Craft CMS 2.6.3000 allows remote attackers to execute arbitrary PHP code by using the "Assets->Upload files" screen and then the "Replace it" option, because this allows a .jpg file to have embedded PHP code, and then be renamed to a .php extension.

Severity
High 8.8
Published
1 Jan 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.9% in the next 30 daysHigher than 79% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Unrestricted file upload (CWE-434)
Attack
Over the network · Needs a user account · No user action needed
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
Craft CMSServers and applications · cpe:a:craftcms:craft_cms
  • Version 2.6.3000

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-3814
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-3814