CVE-2021-34633

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

0.68% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 51.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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

2021-08-05 20:14Z5 YR AGO

Last updated

2024-09-16 16:58Z2 YR AGO

Reserved

2021-06-10

Assigning CNA

Wordfence

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-352Cross-Site Request Forgery (CSRF)Compound

Data version

5.1

Document digest

130366aa927c375a8ae8a6142451f223ccf226611d96c0dc0334f48d503e2227

• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/youtube-feeder/trunk/youtube-feeder.php#L669x_refsource_MISC
• www.wordfence.comhttps://www.wordfence.com/vulnerability-advisories/#CVE-2021-34633x_refsource_MISC