An issue was discovered in Simple Machines Forum (SMF) before 2.0.16.
Priority LOW 31Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An issue was discovered in Simple Machines Forum (SMF) before 2.0.16. Reverse tabnabbing can occur because of use of _blank for external links.
Why it matters now
EPSS 0.01304 70th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:simplemachines:simple_machines_forum:*:*:*:*:*:*:*:* | before 2.0.16 | Vulnerable | SimpleMachines |
- cpe:2.3:a:simplemachines:simple_machines_forum:*:*:*:*:*:*:*:* Versions before 2.0.16 Vulnerable ·SimpleMachines
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-12490
- 2026-10-03 Alias added: GHSA-qvhp-g2m6-8r99
References
More SimpleMachines Simple Machines Forum vulnerabilities
- TI-2025-41147 A stored cross-site scripting (XSS) vulnerability in Simple Machines Forum v2.1.6 allows… CVSS 3.1MEDIUM 6.1
- TI-2024-06892 SimpleMachines SMF User Alert Read Status index.php resource injection CVSS 4.0MEDIUM 5.3
- TI-2024-06891 SimpleMachines SMF Delete User index.php resource injection CVSS 4.0MEDIUM 5.3
- TI-2025-02251 SimpleMachines SMF ManageNews.php cross site scripting CVSS 4.0MEDIUM 5.1
- TI-2025-02250 SimpleMachines SMF ManageAttachments.php cross site scripting CVSS 4.0MEDIUM 5.1
- TI-2016-04970 Packages.php in Simple Machines Forum (SMF) 2.1 allows remote attackers to conduct PHP… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2019-12490 · CVE Program
- CVE-2019-12490 · NVD
- FIRST EPSS
- GHSA-qvhp-g2m6-8r99 · 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