CVE-2020-18662
SQL Injection vulnerability in gnuboard5 <=v5.3.2.8 via the table_prefix parameter in install_db...
CVE-2020-18662 is a critical vulnerability (CVSS 9.8) in Sir Gnuboard, published June 24, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 5.38%, the 92nd percentile. No source names a fixed version.
- Severity
- 9.8 CriticalCVSS 3.1, NVD
- Exploit chance
- 5.38%EPSS, 92nd percentile
- Exploitation
- None known1 public exploit
- Fixed in
- No fix listedNo source names one
Description
SQL Injection vulnerability in gnuboard5 <=v5.3.2.8 via the table_prefix parameter in install_db.php.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Gnuboard5 5.3.2.8 - SQL Injection | 2025-04-11 |
What each source reports
NVD Score used
SQL Injection vulnerability in gnuboard5 <=v5.3.2.8 via the table_prefix parameter in install_db.php.
- Record
CVE-2020-18662- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-89
- Updated
- 2026-11-02
CVE ListNo score
SQL Injection vulnerability in gnuboard5 <=v5.3.2.8 via the table_prefix parameter in install_db.php.
- Record
CVE-2020-18662- Updated
- 2026-11-02
EUVDEUVD-2020-10586No score
SQL Injection vulnerability in gnuboard5 <=v5.3.2.8 via the table_prefix parameter in install_db.php.
- Record
EUVD-2020-10586- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-23wx-6wm2-v53g
SQL Injection vulnerability in gnuboard5 <=v5.3.2.8 via the table_prefix parameter in install_db...
SQL Injection vulnerability in gnuboard5 <=v5.3.2.8 via the table_prefix parameter in install_db.php.
- Record
GHSA-23wx-6wm2-v53g- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-89
- Updated
- 2026-11-02
OSV
SQL Injection vulnerability in gnuboard5 <=v5.3.2.8 via the table_prefix parameter in install_db.php.
- Record
CVE-2020-18662- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.