CVE-2018-16476

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

2.86% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 86.3% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2018-11-30 19:00Z7 YR AGO

Last updated

2024-08-05 10:24Z2 YR AGO

Reserved

2018-09-04

Assigning CNA

hackerone

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-284Improper Access ControlPillar
• CWE-502Deserialization of Untrusted DataBase

Data version

5.1

Document digest

b7bd4fe67d3476853eae5820b102c5757d98023e5f8e5ba1d1a1238392b1bca0

• groups.google.comhttps://groups.google.com/d/msg/rubyonrails-security/FL4dSdzr2zw/zjKVhF4qBAAJx_refsource_MISC
• weblog.rubyonrails.orghttps://weblog.rubyonrails.org/2018/11/27/Rails-4-2-5-0-5-1-5-2-have-been-released/x_refsource_MISC
• access.redhat.comRHSA-2019:0600https://access.redhat.com/errata/RHSA-2019:0600vendor-advisoryx_refsource_REDHAT