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Vulnerability record · CVE-2020-18662 · published 24 June 2021

CVE-2020-18662: Sir gnuboard sql injection vulnerability

Sir · Gnuboard

SQL Injection vulnerability in gnuboard5 <=v5.3.2.8 via the table_prefix parameter in install_db.php.

9.8 CVSS 3.1 Critical EPSS 5.4% · top 7.6% CWE-89 · SQL injection
9.8CVSS 3.1 base score, v2 7.5
5.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

SQL Injection vulnerability in gnuboard5 <=v5.3.2.8 via the table_prefix parameter in install_db.php.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/LoRexxar/CVE_Request/tree/master/gnuboard5%20mul%20vuls%20before%20v5.3.2.8#sql-injection-in-install_ Third Party Advisory
https://github.com/gnuboard/gnuboard5/issues/43 ExploitTechnical Description
https://www.seebug.org/vuldb/ssvid-97927 Third Party Advisory
https://github.com/LoRexxar/CVE_Request/tree/master/gnuboard5%20mul%20vuls%20before%20v5.3.2.8#sql-injection-in-install_ Third Party Advisory
https://github.com/gnuboard/gnuboard5/issues/43 ExploitTechnical Description
https://www.seebug.org/vuldb/ssvid-97927 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2005-0269Sir gnuboard vulnerabilityThe file extension check in GNUBoard 3.40 and earlier only verifies extensions that contain all lowercase letters, which allows remote attackers to u…EPSS 2.6%9.1CVE-2022-1252Sir gnuboard broken cryptographic algorithm vulnerabilityUse of a Broken or Risky Cryptographic Algorithm in GitHub repository gnuboard/gnuboard5 prior to and including 5.5.5. A vulnerability in gnuboard v5…EPSS 0.55%8.8CVE-2024-41475Sir gnuboard origin validation error vulnerabilityGnuboard g6 6.0.7 is vulnerable to Session hijacking due to a CORS misconfiguration.EPSS 0.30%7.5CVE-2022-44216Sir gnuboard missing authentication for critical function vulnerabilityGnuboard 5.5.4 and 5.5.5 is vulnerable to Insecure Permissions. An attacker can change password of all users without knowing victim's original passwo…EPSS 0.67%7.5CVE-2011-4066Sir gnuboard sql injection vulnerabilitySQL injection vulnerability in bbs/tb.php in Gnuboard 4.33.02 and earlier allows remote attackers to execute arbitrary SQL commands via the PATH_INFO.EPSS 1.6%7.5CVE-2004-1403Sir gnuboard vulnerabilityPHP remote file inclusion vulnerability in index.php in GNUBoard 3.39 and earlier allows remote attackers to execute arbitrary PHP code by modifying …EPSS 1.7%6.8CVE-2009-0290Sir gnuboard path traversal vulnerabilityDirectory traversal vulnerability in common.php in SIR GNUBoard 4.31.03 allows remote attackers to include and execute arbitrary local files via a ..…EPSS 3.3%6.5CVE-2025-61464Sir gnuboard sql injection vulnerabilitygnuboard gnuboard4 v4.36.04 and before is vulnerable to Second-order SQL Injection via the search_table in bbs/search.php.EPSS 0.23%

Source: NIST National Vulnerability Database (record CVE-2020-18662), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.