CVE-2026-4021

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.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total 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

0.44% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 36.2% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. 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

2026-03-23 23:25Z5 MO AGO

Last updated

2026-04-08 17:32Z4 MO AGO

Reserved

2026-03-11

Assigning CNA

Wordfence

Record state

PUBLISHED

Severity

High (CVSS 8.1)

CNA CVSS vector

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

Weaknesses

• CWE-287Improper AuthenticationClass

Data version

5.2

Document digest

6e3b48a673fbe5cdfcb19f9e64404c56a0df152733be84ca43cebcb6a5db46b9

• www.wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/f1b9725b-dee5-44ca-bb33-c6812fb76adc?source=cve
• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/contest-gallery/trunk/v10/v10-admin/users/frontend/registry/users-registry-check-after-email-or-pin-confirmation.php#L153
• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.1.4/v10/v10-admin/users/frontend/registry/users-registry-check-after-email-or-pin-confirmation.php#L153
• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/contest-gallery/trunk/ajax/ajax-functions-frontend.php#L204
• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.1.4/ajax/ajax-functions-frontend.php#L204
• plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/changeset?old_path=/contest-gallery/tags/28.1.5&new_path=/contest-gallery/tags/28.1.6