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CVE-2019-18886

MEDIUMCVSS 5.3/10EPSS 1.55%

Last modified

CVE-2019-18886 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 1.55% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability
1.55%

72.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
SensiolabsSymfony>= 4.2.0, <= 4.2.11
SensiolabsSymfony>= 4.3.0, <= 4.3.7

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-18886?
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 severe is CVE-2019-18886?
CVE-2019-18886 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.55% probability of exploitation in the next 30 days.
How do I fix CVE-2019-18886?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-18886?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST