vBulletin before 5.5.6pl1, 5.6.0 before 5.6.0pl1, and 5.6.1 before 5.6.1pl1 has incorrect access control.
Priority HIGH 84CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass, SQL injection
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-306 and CWE-89.
Summary
vBulletin before 5.5.6pl1, 5.6.0 before 5.6.0pl1, and 5.6.1 before 5.6.1pl1 has incorrect access control.
Why it matters now
EPSS 0.88948 99th percentileScored 2026-11-07
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 · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:* | 5.0.0 to before 5.5.6 | Vulnerable | vBulletin |
| cpe:2.3:a:vbulletin:vbulletin:5.5.6:-:*:*:*:*:*:* | 5.5.6 | Vulnerable | vBulletin |
| cpe:2.3:a:vbulletin:vbulletin:5.6.0:-:*:*:*:*:*:* | 5.6.0 | Vulnerable | vBulletin |
| cpe:2.3:a:vbulletin:vbulletin:5.6.1.-:*:*:*:*:*:*:* | 5.6.1.- | Vulnerable | vBulletin |
- cpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:* Versions 5.0.0 to before 5.5.6 Vulnerable ·vBulletin
- cpe:2.3:a:vbulletin:vbulletin:5.5.6:-:*:*:*:*:*:* Versions 5.5.6 Vulnerable ·vBulletin
- cpe:2.3:a:vbulletin:vbulletin:5.6.0:-:*:*:*:*:*:* Versions 5.6.0 Vulnerable ·vBulletin
- cpe:2.3:a:vbulletin:vbulletin:5.6.1.-:*:*:*:*:*:*:* Versions 5.6.1.- Vulnerable ·vBulletin
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-12720
- 2026-10-03 Alias added: GHSA-rgcf-v2qh-fw5r
References
Advisory 4
- https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4440032-vbulletin-5-6-1-security-patch-level-1
- http://packetstormsecurity.com/files/157716/vBulletin-5.6.1-SQL-Injection.html
- http://packetstormsecurity.com/files/157904/vBulletin-5.6.1-SQL-Injection.html
- https://attackerkb.com/topics/RSDAFLik92/cve-2020-12720-vbulletin-incorrect-access-control
More Vbulletin vulnerabilities
- TI-2020-13248 vBulletin 5.5.4 through 5.6.2 allows remote command execution via crafted subWidgets data… KEVCVSS 3.1CRITICAL 9.8
- TI-2019-12540 vBulletin 5.x through 5.5.4 allows remote command execution via the widgetConfig[code]… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-31014 vBulletin 5.0.0 through 5.7.5 and 6.0.0 through 6.0.3 allows unauthenticated users to… CVSS 3.1CRITICAL 10.0
- TI-2023-10600 vBulletin before 5.6.9 PL1 allows an unauthenticated remote attacker to execute arbitrary… CVSS 3.1CRITICAL 9.8
- TI-2016-05317 SQL injection vulnerability in forumrunner/includes/moderation.php in vBulletin before… CVSS 3.0CRITICAL 9.8
- TI-2025-31015 Certain vBulletin versions might allow attackers to execute arbitrary PHP code by abusing… CVSS 3.1CRITICAL 9.0
Sources
- CVE-2020-12720 · CVE Program
- CVE-2020-12720 · NVD
- FIRST EPSS
- GHSA-rgcf-v2qh-fw5r · 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