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CVE-2018-19789

22
FAUCET Score

CVE-2018-19789 is a vulnerability in Symfony versions 2.7.x through 4.2.x where a file upload to a form field expecting a string can disclose the uploaded file's path. This issue, categorized as CWE-434 (Unrestricted Upload of File with Dangerous Type), affects Debian and SensioLabs Symfony products. It has a CVSS score of 5.3 (Medium), indicating a network-based attack with low complexity, potentially leading to information disclosure. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.7.0, < 2.7.50CPE matchmatch criteria
cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*
>= 2.8.0, < 2.8.49CPE matchmatch criteria
cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*
>= 3.0.0, < 3.4.20CPE matchmatch criteria
cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*
>= 4.0.0, < 4.0.15CPE matchmatch criteria
cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*
>= 4.1.0, < 4.1.9CPE matchmatch criteria
cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.59%
Probability of exploitation in next 30 days
EPSS Percentile
88.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0359 is in the 84th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (12)

composerpatch availablevia ghsa
Product: symfony/symfonyFixed in: 2.7.50
composerpatch availablevia ghsa
Product: symfony/symfonyFixed in: 2.8.49
composerpatch availablevia ghsa
Product: symfony/symfonyFixed in: 3.4.20
composerpatch availablevia ghsa
Product: symfony/symfonyFixed in: 4.0.15
composerpatch availablevia ghsa
Product: symfony/symfonyFixed in: 4.1.9
composerpatch availablevia ghsa
Product: symfony/symfonyFixed in: 4.2.1
composerpatch availablevia ghsa
Product: symfony/formFixed in: 2.7.50
composerpatch availablevia ghsa
Product: symfony/formFixed in: 2.8.49
composerpatch availablevia ghsa
Product: symfony/formFixed in: 3.4.20
composerpatch availablevia ghsa
Product: symfony/formFixed in: 4.0.15
composerpatch availablevia ghsa
Product: symfony/formFixed in: 4.1.9
composerpatch availablevia ghsa
Product: symfony/formFixed in: 4.2.1

Vendor Advisories (1)

composerGHSA-x3cf-w64x-4cp2medium

Symfony Path Disclosure

May 14, 2022

References

lists.debian.org / debian-lts-announce/2019/03/msg00009.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/4TD3E7FZIXLVFG3SMFJPDEKPZ26TJOW7
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/JZMRJ7VTHCY5AZK24G4QGX36RLUDTDKE
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/OA4WVFN5FYPIXAPLWZI6N425JHHDSWAZ
seclists.org / bugtraq/2019/May/21
symfony.com / blog/cve-2018-19789-disclosure-of-uploaded-files-full-path
PatchVendor Advisory
debian.org / security/2019/dsa-4441
securityfocus.com / bid/106249
Third Party AdvisoryVDB Entry