Vulnerability details
CVE-2026-28557
gVectors Team wpForo Forum
wpForo Forum < 2.4.16 Privilege Escalation via Role Synchronization Handler
CVSS 4.0
7.1High
Official description
wpForo Forum 2.4.14 contains a missing capability check vulnerability that allows authenticated users to trigger bulk wpForo usergroup reassignment via the wpforo_synch_roles AJAX handler. Attackers access the usergroups admin page, accessible to any authenticated user, to obtain a nonce, then remap all wpForo usergroups to arbitrary WordPress roles.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.1High | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
| 6.5Medium | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| gVectors Team | wpForo Forum | 2.4 ≤ v < 2.4.16 | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2026-03-01
- Last updated
- 2026-05-26
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.31%
Probability of exploitation in 30 days
24%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-862Missing Authorization