How severe is CVE-2026-22216?

CVE-2026-22216 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2026-22216 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-22216?

CVE-2026-22216 affects Gvectors Wpdiscuz. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-22216?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-22216 have an EU (EUVD) identifier?

Yes. CVE-2026-22216 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11753.

When was CVE-2026-22216 published?

CVE-2026-22216 was published on 2026-03-13 and last updated on 2026-06-17.

CVE-2026-22216

CVE-2026-22216 is a medium-severity vulnerability in Gvectors Wpdiscuz with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-799.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 6.9
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-11753
Weakness: CWE-799
Affected product: Gvectors Wpdiscuz
Published: 2026-03-13
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-22216?: 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.
How severe is CVE-2026-22216?: CVE-2026-22216 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2026-22216 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-22216?: CVE-2026-22216 affects Gvectors Wpdiscuz. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-22216?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-22216 have an EU (EUVD) identifier?: Yes. CVE-2026-22216 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11753.
When was CVE-2026-22216 published?: CVE-2026-22216 was published on 2026-03-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gvectors:wpdiscuz:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Gvectors Wpdiscuz

CVE-2020-24186 — Critical (CVSS 10.0): A Remote Code Execution vulnerability exists in the gVectors wpDiscuz plugin 7.0 through 7.0.4 for WordPress, which…
CVE-2026-22192 — Critical (CVSS 9.9): Voltronic Power SNMP Web Pro version 1.1 contains an authentication bypass vulnerability that allows unauthenticated…
CVE-2024-9488 — Critical (CVSS 9.8): The Comments – wpDiscuz plugin for WordPress is vulnerable to authentication bypass in all versions up to, and…
CVE-2020-13640 — Critical (CVSS 9.8): A SQL injection issue in the gVectors wpDiscuz plugin 5.3.5 and earlier for WordPress allows remote attackers to…
CVE-2026-22202 — High (CVSS 8.1): wpDiscuz before 7.6.47 contains a cross-site request forgery vulnerability that allows attackers to delete all comments…
CVE-2026-22193 — High (CVSS 8.1): wpDiscuz before 7.6.47 contains an SQL injection vulnerability in the getAllSubscriptions() function where string…

All CVEs affecting Gvectors Wpdiscuz →

Other CWE-799 vulnerabilities

CVE-2025-54321 — Critical (CVSS 9.8): In Ascertia SigningHub through 8.6.8, there is a lack of rate limiting on the reset password function, leading to an…
CVE-2025-29998 — High (CVSS 8.2): This vulnerability exists in the CAP back office application due to missing rate limiting on OTP requests in an API…
CVE-2026-7402 — High (CVSS 8.1): Improper Control of Interaction Frequency vulnerability in MeWare Software Development Inc. PDKS allows Flooding. This…
CVE-2026-24017 — High (CVSS 8.1): An Improper Control of Interaction Frequency vulnerability [CWE-799] vulnerability in Fortinet FortiWeb 8.0.0 through…
CVE-2021-41177 — High (CVSS 8.1): Nextcloud is an open-source, self-hosted productivity platform. Prior to versions 20.0.13, 21.0.5, and 22.2.0,…
CVE-2026-30972 — High (CVSS 7.5): Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior o…

Browse all CWE-799 vulnerabilities →