How severe is CVE-2026-22209?

CVE-2026-22209 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-22209 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-22209?

CVE-2026-22209 affects Gvectors Wpdiscuz. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-22209?

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

Does CVE-2026-22209 have an EU (EUVD) identifier?

Yes. CVE-2026-22209 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11750.

When was CVE-2026-22209 published?

CVE-2026-22209 was published on 2026-03-13 and last updated on 2026-06-17.

CVE-2026-22209

CVE-2026-22209 is a medium-severity vulnerability in Gvectors Wpdiscuz with a CVSS 3.x base score of 5.5. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v4: 5.1
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-11750
Weakness: CWE-79
Affected product: Gvectors Wpdiscuz
Published: 2026-03-13
Last modified: 2026-06-17

Description

wpDiscuz before 7.6.47 contains a cross-site scripting vulnerability in the customCss field that allows administrators to inject malicious scripts by breaking out of style tags. Attackers with admin access can inject payloads like </style><script>alert(1)</script> in the custom CSS setting to execute arbitrary JavaScript in user browsers.

Frequently asked questions

What is CVE-2026-22209?: wpDiscuz before 7.6.47 contains a cross-site scripting vulnerability in the customCss field that allows administrators to inject malicious scripts by breaking out of style tags. Attackers with admin access can inject payloads like </style><script>alert(1)</script> in the custom CSS setting to execute arbitrary JavaScript in user browsers.
How severe is CVE-2026-22209?: CVE-2026-22209 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-22209 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-22209?: CVE-2026-22209 affects Gvectors Wpdiscuz. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-22209?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-22209 have an EU (EUVD) identifier?: Yes. CVE-2026-22209 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-11750.
When was CVE-2026-22209 published?: CVE-2026-22209 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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