VulnerabilityModified
CVE-2019-18886
The ability to enumerate users was possible due to different handling depending on whether the user existed when making unauthorized attempts to use the switch users functionality.
MEDIUM 5.3EPSS 1.55%
Does this matter?
Lower severity and a low EPSS score (1.55%). Track it; it rarely justifies an emergency change on its own.
Description
An issue was discovered in Symfony 4.2.0 to 4.2.11 and 4.3.0 to 4.3.7. The ability to enumerate users was possible due to different handling depending on whether the user existed when making unauthorized attempts to use the switch users functionality. This is related to symfony/security.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 1.55% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-203
- Affected
- sensiolabs/symfony
- Source
- cve@mitre.org
References
- https://github.com/symfony/symfony/releases/tag/v4.3.8Release Notes
- https://symfony.com/blog/cve-2019-18886-prevent-user-enumeration-using-switch-user-functionalityVendor Advisory
- https://symfony.com/blog/symfony-4-3-8-releasedRelease Notes
- https://github.com/symfony/symfony/releases/tag/v4.3.8Release Notes
- https://symfony.com/blog/cve-2019-18886-prevent-user-enumeration-using-switch-user-functionalityVendor Advisory
- https://symfony.com/blog/symfony-4-3-8-releasedRelease Notes
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.