XSS in Gvectors Wpdiscuz
CVE-2026-22210
wpDiscuz before 7.6.47 contains a cross-site scripting vulnerability that allows attackers to inject malicious code through unescaped attachment URLs in HTML output by exploiting the WpdiscuzHelperUpload class. Attackers can craft malicious attachment records or filter hooks to inject arbitrary JavaScript into img and anchor tag attributes, executing code in the context of WordPress users viewing comments.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (5.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Gvectors Wpdiscuz — versions 0, 7.6.47
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Product, Release Notes, patch)
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-22210?
- CVE-2026-22210 is a medium-severity vulnerability in Gvectors Wpdiscuz, classified under Cross-site Scripting. CVSS score: 4.4/10. Published 2026-03-13.
- How severe is CVE-2026-22210?
- Medium severity. CVSS v3 base score is 4.4 out of 10.