CVE-2018-21264

HIGHCVSS 8.8/10EPSS 1.12%

Last modified

CVE-2018-21264 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. It did not enforce the expiration date of a SAML response.. EPSS estimates a 1.12% chance of exploitation in the next 30 days.

Description

An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. It did not enforce the expiration date of a SAML response.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
1.12%

62.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
MattermostMattermost Server< 4.5.2
MattermostMattermost Server>= 4.6.0, < 4.6.2
MattermostMattermost Server4.7.0Rc1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-21264?
An issue was discovered in Mattermost Server before 4.7.0, 4.6.2, and 4.5.2. It did not enforce the expiration date of a SAML response.
How severe is CVE-2018-21264?
CVE-2018-21264 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.12% probability of exploitation in the next 30 days.
How do I fix CVE-2018-21264?
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-2018-21264?

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

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Source: NVD / NIST