SQL Injection in Gvectors Wpforo Forum
CVE-2026-28562
wpForo 2.4.14 contains an unauthenticated SQL injection vulnerability in Topics::get_topics() where the ORDER BY clause relies on ineffective esc_sql() sanitization on unquoted identifiers. Attackers exploit the wpfob parameter with CASE WHEN payloads to perform blind boolean extraction of credentials from the WordPress database.
Vulnerability class: SQL Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (41.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001
Affected products
- Gvectors Wpforo Forum
- Gvectors Team Wpforo Forum — versions 2.4, 2.4.15
Weakness classification (CWE)
References
- wordpress.org/plugins/wpforo/ (Product, product)
- wordpress.org/plugins/wpforo/ (Release Notes, patch)
- www.vulncheck.com/advisories/wpforo-sql-injection-via-topics-order-by-parameter (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-28562?
- CVE-2026-28562 is a high-severity vulnerability in Gvectors Wpforo Forum, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-02-28.
- How severe is CVE-2026-28562?
- High severity. CVSS v3 base score is 8.2 out of 10.