wpForo Forum <= 3.0.5 - Authenticated (Subscriber+) Arbitrary File Deletion via Custom Profile Field File Path
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
The wpForo Forum plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to and including 3.0.5. This is due to two compounding flaws: the Members::update() method does not validate or restrict the value of file-type custom profile fields, allowing authenticated users to store an arbitrary path instead of a legitimate upload path; and the wpforo_fix_upload_dir() sanitization function in ucf_file_delete() only remaps paths that match the expected pattern, and it is passed directly to the unlink() function. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Note: The vulnerability requires a file custom field, which requires the wpForo - User Custom Fields addon plugin.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| gVectors Team | wpForo Forum | up to 3.0.5 | — | No fix listed | CNA |
- wpForo Forum VendorgVectors Team Affected up to 3.0.5 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gvectors:wpforo_forum:*:*:*:*:*:*:*:* | — | — | gVectors Team |
- cpe:2.3:a:gvectors:wpforo_forum:*:*:*:*:*:*:*:* Versions — — ·gVectors Team
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-6248
- 2026-10-03 Alias added: GHSA-9xxq-3rc5-mg2v
- 2026-10-25 EPSS moved to the below the 50th percentile
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/79cc102a-6777-41be-a395-8c2eeb6deb73?source=cve
- https://plugins.trac.wordpress.org/browser/wpforo/tags/2.4.16/wpforo/classes/Actions.php#L1418
- https://plugins.trac.wordpress.org/browser/wpforo/tags/2.4.16/wpforo/includes/functions.php#L3187
- https://plugins.trac.wordpress.org/browser/wpforo/tags/2.4.16/wpforo/classes/Members.php#L891
- https://plugins.trac.wordpress.org/changeset/3509997/wpforo
More gVectors Team vulnerabilities
- TI-2020-14828 A Remote Code Execution vulnerability exists in the gVectors wpDiscuz plugin 7.0 through… CVSS 3.1CRITICAL 10.0
- TI-2026-17809 Voltronic Power SNMP Web Pro 1.1 Path Traversal via upload.cgi CVSS 4.0HIGH 8.7
- TI-2023-02108 Server-side request forgery in gVectors Team wpForo Forum CVSS 3.1HIGH 8.8
- TI-2023-02165 wpForo Forum < 2.1.9 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
- TI-2020-10702 A SQL injection issue in the gVectors wpDiscuz plugin 5.3.5 and earlier for WordPress… CVSS 3.1CRITICAL 9.8
- TI-2026-36676 WordPress wpForo Forum plugin <= 3.1.0 - Broken Authentication vulnerability CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-6248 · CVE Program
- CVE-2026-6248 · NVD
- FIRST EPSS
- GHSA-9xxq-3rc5-mg2v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences