CVE-2026-22182

HIGH EPSS 40.4%
Published Mar 13, 20263mo ago · Modified Mar 17, 20263mo ago
8.7 CVSS 4.0
High
Find Similar
Published Mar 13, 2026 3mo ago
Last Modified Mar 17, 2026 3mo ago

Description

wpDiscuz before 7.6.47 contains an unauthenticated denial of service vulnerability that allows anonymous users to trigger mass notification emails by exploiting the checkNotificationType() function. Attackers can repeatedly call the wpdiscuz-ajax.php endpoint with arbitrary postId and comment_id parameters to flood subscribers with notifications, as the handler lacks nonce verification, authentication checks, and rate limiting.

CVSS Details

Base Score
8.7
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
40.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-770
CWE-862 Missing Authorization Authorization

Affected Products 1

VendorProductVersionRange
gvectorswpdiscuz* <7.6.47

References 3

  • wordpress.org https://wordpress.org/plugins/wpdiscuz/
    Product
  • wordpress.org https://wordpress.org/plugins/wpdiscuz/#developers
    ProductRelease Notes
  • vulncheck.com https://www.vulncheck.com/advisories/wpdiscuz-before-unauthenticated-email-notification-flood-via-wpdchecknotificationtype
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.