CVE-2021-42362

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

79.82% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 99.6% 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:L/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

2021-11-17 17:44Z4 YR AGO

Last updated

2024-09-16 18:45Z1 YR AGO

Reserved

2021-10-14

Assigning CNA

Wordfence

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-434Unrestricted Upload of File with Dangerous TypeBase

Data version

5.1

Document digest

694f4b9a6aac8c34cbed4d660362b8404c7ad767deda2edafcaa2e3dcf4a1a55

• blog.nintechnet.comhttps://blog.nintechnet.com/improper-input-validation-fixed-in-wordpress-popular-posts-plugin/x_refsource_MISC
• www.wordfence.comhttps://www.wordfence.com/vulnerability-advisories/#CVE-2021-42362x_refsource_MISC
• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/changeset/2542638/wordpress-popular-posts/trunk/src/Image.phpx_refsource_MISC
• wpscan.comhttps://wpscan.com/vulnerability/bd4f157c-a3d7-4535-a587-0102ba4e3009x_refsource_MISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/165376/WordPress-Popular-Posts-5.3.2-Remote-Code-Execution.htmlx_refsource_MISC
• github.comhttps://github.com/cabrerahector/wordpress-popular-posts/commit/d9b274cf6812eb446e4103cb18f69897ec6fe601patch