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Symfony Cross-site Scripting (XSS) vulnerability

Moderate severity GitHub Reviewed Published Nov 12, 2019 to the GitHub Advisory Database • Updated Feb 14, 2024

Package

composer drupal/core (Composer)

Affected versions

>= 8.6.0, < 8.6.15
>= 8.0.0, < 8.5.15

Patched versions

8.6.15
8.5.15
composer drupal/drupal (Composer)
>= 8.0.0, < 8.5.15
>= 8.6.0, < 8.6.15
8.5.15
8.6.15
composer symfony/framework-bundle (Composer)
>= 2.7.0, < 2.7.51
>= 2.8.0, < 2.8.50
>= 3.0.0, < 3.4.26
>= 4.0.0, < 4.1.12
>= 4.2.0, < 4.2.7
2.7.51
2.8.50
3.4.26
4.1.12
4.2.7
composer symfony/symfony (Composer)
>= 2.7.0, < 2.7.51
>= 2.8.0, < 2.8.50
>= 3.0.0, < 3.4.26
>= 4.0.0, < 4.1.12
>= 4.2.0, < 4.2.7
2.7.51
2.8.50
3.4.26
4.1.12
4.2.7

Description

In Symfony before 2.7.51, 2.8.x before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and 4.2.x before 4.2.7, validation messages are not escaped, which can lead to XSS when user input is included. This is related to symfony/framework-bundle.

References

Published by the National Vulnerability Database May 16, 2019
Reviewed Nov 12, 2019
Published to the GitHub Advisory Database Nov 12, 2019
Last updated Feb 14, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS score

0.086%
(38th percentile)

Weaknesses

CVE ID

CVE-2019-10909

GHSA ID

GHSA-g996-q5r8-w7g2

Source code

No known source code
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