5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
0.026 Low
EPSS
Percentile
90.2%
An issue was discovered in Symfony 2.7.x before 2.7.50, 2.8.x before 2.8.49, 3.x before 3.4.20, 4.0.x before 4.0.15, 4.1.x before 4.1.9, and 4.2.x before 4.2.1. When using the scalar type hint string
in a setter method (e.g. setName(string $name)
) of a class that’s the data_class
of a form, and when a file upload is submitted to the corresponding field instead of a normal text input, then UploadedFile::__toString()
is called which will then return and disclose the path of the uploaded file. If combined with a local file inclusion issue in certain circumstances this could escalate it to a Remote Code Execution.
github.com/advisories/GHSA-x3cf-w64x-4cp2
github.com/FriendsOfPHP/security-advisories/blob/master/symfony/form/CVE-2018-19789.yaml
github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2018-19789.yaml
github.com/symfony/symfony/commit/b65e6f1a47b68f2713b60cdac9cc3a4af62a2d1c
lists.debian.org/debian-lts-announce/2019/03/msg00009.html
lists.fedoraproject.org/archives/list/[email protected]/message/4TD3E7FZIXLVFG3SMFJPDEKPZ26TJOW7/
lists.fedoraproject.org/archives/list/[email protected]/message/JZMRJ7VTHCY5AZK24G4QGX36RLUDTDKE/
lists.fedoraproject.org/archives/list/[email protected]/message/OA4WVFN5FYPIXAPLWZI6N425JHHDSWAZ/
nvd.nist.gov/vuln/detail/CVE-2018-19789
seclists.org/bugtraq/2019/May/21
symfony.com/blog/cve-2018-19789-disclosure-of-uploaded-files-full-path
symfony.com/cve-2018-19789
web.archive.org/web/20210124224817/www.securityfocus.com/bid/106249
www.debian.org/security/2019/dsa-4441
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
0.026 Low
EPSS
Percentile
90.2%