CVE-2021-4355

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.80% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 56.3% of scored records. A rank, not a probability.

NVD base score

5.3 (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:L/I:N/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

2023-06-07 01:51Z3 YR AGO

Last updated

2026-04-08 16:58Z6 MO AGO

Reserved

2023-06-06

Assigning CNA

Wordfence

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-862Missing AuthorizationClass

Data version

5.2

Document digest

79c48e68f839fb190c6c9a07b38996d66e2501a354227e39f3c4375abec7b673

• www.wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/671f5ba5-1f18-49fa-aa97-eaebdb3417bb?source=cve
• blog.nintechnet.comhttps://blog.nintechnet.com/wordpress-welcart-e-commerce-plugin-fixed-vulnerabilities/