Is CVE-2026-22216 actively exploited?

CVE-2026-22216 has no public evidence of in-the-wild exploitation as of 2026-03-17.

What is the CVSS score for CVE-2026-22216?

CVE-2026-22216 has a CVSS score of 6.9 (MEDIUM severity). Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

How do I patch CVE-2026-22216?

Patch guidance is available from gvectors security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-22216.

CVE-2026-22216 - remediation guidance & executive summary

Description

wpDiscuz before 7.6.47 contains a missing rate limiting vulnerability that allows unauthenticated attackers to subscribe arbitrary email addresses to post notifications by sending POST requests to the wpdAddSubscription handler in class.WpdiscuzHelperAjax.php. Attackers can exploit LIKE wildcard characters in the subscription query to match multiple email addresses and generate unwanted notification emails to victim accounts.

CVSS Metrics

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-799

Metadata

Primary Vendor: GVECTORS
Published: 3/13/2026
Last Modified: 3/17/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-22216

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary