CVE-2019-18886
symfony - security update
5.3
MEDIUM
CVSS 3.1
EPSS 1.5%
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.
How to fix CVE-2019-18886
To remediate CVE-2019-18886, upgrade the affected package to a fixed version below.
- —upgrade to 4.3.8+dfsg-1 or later
- —upgrade to 2.3.21+dfsg-4+deb8u6 or later
- —upgrade to 4.2.12 or later
- —upgrade to 4.2.12 or later
Is CVE-2019-18886 being exploited?
Low — EPSS is 1.5%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 4.3.8+dfsg-1
- from 0, < 2.3.21+dfsg-4+deb8u6
- >= 4.1.0, < 4.2.12
- >= 4.1.0, < 4.2.12
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |