Information disclosure in Gvectors Wpforo Forum
CVE-2026-28559
wpForo Forum 2.4.14 contains an information disclosure vulnerability that allows unauthenticated users to retrieve private and unapproved forum topics via the global RSS feed endpoint. Attackers request the RSS feed without a forum ID parameter, bypassing the privacy and status WHERE clauses that are only applied when a specific forum ID is present in the query.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (39.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.001
Affected products
- Gvectors Wpforo Forum
- Gvectors Team Wpforo Forum — versions 2.4, 2.4.16
Weakness classification (CWE)
References
- wordpress.org/plugins/wpforo/ (Product, product)
- wordpress.org/plugins/wpforo/ (Release Notes, patch)
- www.vulncheck.com/advisories/wpforo-forum-information-disclosure-via-global-rss… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-28559?
- CVE-2026-28559 is a medium-severity vulnerability in Gvectors Wpforo Forum, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-02-28.
- How severe is CVE-2026-28559?
- Medium severity. CVSS v3 base score is 5.3 out of 10.