How severe is CVE-2026-22182?

CVE-2026-22182 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-22182 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-22182?

CVE-2026-22182 affects Gvectors Wpdiscuz. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-22182?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-22182 have an EU (EUVD) identifier?

Yes. CVE-2026-22182 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11739.

When was CVE-2026-22182 published?

CVE-2026-22182 was published on 2026-03-13 and last updated on 2026-06-17.

CVE-2026-22182

CVE-2026-22182 is a high-severity vulnerability in Gvectors Wpdiscuz with a CVSS 3.x base score of 7.5. 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-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-11739
Weakness: CWE-770
Affected product: Gvectors Wpdiscuz
Published: 2026-03-13
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-22182?: 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.
How severe is CVE-2026-22182?: CVE-2026-22182 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-22182 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-22182?: CVE-2026-22182 affects Gvectors Wpdiscuz. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-22182?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-22182 have an EU (EUVD) identifier?: Yes. CVE-2026-22182 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11739.
When was CVE-2026-22182 published?: CVE-2026-22182 was published on 2026-03-13 and last updated on 2026-06-17.

References

Affected products (1)

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

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