CVE-2021-44223

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

28.98% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 98.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2021-11-25 14:51Z4 YR AGO

Last updated

2024-08-04 04:17Z2 YR AGO

Reserved

2021-11-25

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 8.1)

CNA CVSS vector

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

Weaknesses

No CWE assigned

Data version

5.1

Document digest

acc0b7a02f5df9dd748b902cfe1d3e655529aa4762ace92214c6fe2a5f440938

• vavkamil.czhttps://vavkamil.cz/2021/11/25/wordpress-plugin-confusion-update-can-get-you-pwned/x_refsource_MISC
• make.wordpress.orghttps://make.wordpress.org/core/2021/06/29/introducing-update-uri-plugin-header-in-wordpress-5-8/x_refsource_MISC