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TI-2026-17826 Aliases CVE-2026-22216GHSA-9j2r-2287-24hf

wpDiscuz before 7.6.47 - No Rate Limiting on Subscription Endpoints with LIKE Wildcard Bypass

Priority LOW 36CWE-799Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · Low · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0034 27th percentileScored 2026-11-07
Fix Fixed wpDiscuz (gVectors): 7.6.47

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
gVectors TeamwpDiscuzbefore 7.6.477.6.47Patch availableCNA
  • wpDiscuz VendorgVectors Team Affected before 7.6.47 Fixed in 7.6.47 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:gvectors:wpdiscuz:*:*:*:*:*:wordpress:*:*before 7.6.47VulnerablegVectors Team
  • cpe:2.3:a:gvectors:wpdiscuz:*:*:*:*:*:wordpress:*:* Versions before 7.6.47 Vulnerable ·gVectors Team

Remediation

  • Fix · CNA wpDiscuz (gVectors) Fixed in 7.6.47

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    gVectors wpDiscuz 7.6.47

    11 records Highest priority Priority MEDIUM 2 MEDIUM, 9 LOW

    Other records, highest priority first

    • TI-2026-17792 wpDiscuz before 7.6.47 - Unauthenticated Email Notification Flood via wpdCheckNotificationTypePriority MEDIUM 44
    • TI-2026-17803 wpDiscuz before 7.6.47 - SQL Injection in getAllSubscriptions()Priority MEDIUM 42
    • TI-2026-17811 wpDiscuz before 7.6.47 - IP Address Spoofing in getIP()Priority LOW 36
    Show all 11 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-22216
  2. 2026-10-03 Alias added: GHSA-9j2r-2287-24hf

References

Patch 1

Other 1

  • TI-2020-14828 A Remote Code Execution vulnerability exists in the gVectors wpDiscuz plugin 7.0 through… CVSS 3.1CRITICAL 10.0
  • TI-2026-17809 Voltronic Power SNMP Web Pro 1.1 Path Traversal via upload.cgi CVSS 4.0HIGH 8.7
  • TI-2020-10702 A SQL injection issue in the gVectors wpDiscuz plugin 5.3.5 and earlier for WordPress… CVSS 3.1CRITICAL 9.8
  • TI-2026-17792 wpDiscuz before 7.6.47 - Unauthenticated Email Notification Flood via wpdCheckNotificationType CVSS 4.0HIGH 8.7
  • TI-2024-08805 Comments – wpDiscuz <= 7.6.24 - Authentication Bypass via WordPress.com OAuth provider CVSS 3.1CRITICAL 9.8
  • TI-2026-17803 wpDiscuz before 7.6.47 - SQL Injection in getAllSubscriptions() CVSS 4.0CRITICAL 9.2
See all 32 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences