CVE-2018-20491

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

0.56% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 44.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2019-12-30 21:24Z6 YR AGO

Last updated

2024-08-05 12:05Z2 YR AGO

Reserved

2018-12-26

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.1

Document digest

5e57c97e5b640deb115eefbd4cfe9c0e990b59f2adb115e28f5e1b76de25c1d0

• about.gitlab.comhttps://about.gitlab.com/2018/12/31/security-release-gitlab-11-dot-6-dot-1-released/x_refsource_CONFIRM
• gitlab.comhttps://gitlab.com/gitlab-org/gitlab-ce/issues/54008x_refsource_CONFIRM