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Vulnerability record · CVE-2017-1000423 · published 2 January 2018

CVE-2017-1000423: B2evolution improper input validation vulnerability

B2evolution · B2evolution

b2evolution version 6.6.0 - 6.8.10 is vulnerable to input validation (backslash and single quote escape) in basic install functionality resulting in unauthenticated attacker gaining PHP code execution on the victim's setup.

9.8 CVSS 3.0 Critical EPSS 2.4% · top 16.7% CWE-20 · Improper input validation
9.8CVSS 3.0 base score, v2 7.5
2.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

b2evolution version 6.6.0 - 6.8.10 is vulnerable to input validation (backslash and single quote escape) in basic install functionality resulting in unauthenticated attacker gaining PHP code execution on the victim's setup.

CVSS:3.0/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/b2evolution/b2evolution/commit/0096a3ebc85f6aadbda2c4427cd092a538b161d2 PatchThird Party Advisory
https://github.com/b2evolution/b2evolution/commit/b899d654d931f3bf3cfbbdd71e0d1a0f3a16d04c PatchThird Party Advisory
https://github.com/b2evolution/b2evolution/commit/0096a3ebc85f6aadbda2c4427cd092a538b161d2 PatchThird Party Advisory
https://github.com/b2evolution/b2evolution/commit/b899d654d931f3bf3cfbbdd71e0d1a0f3a16d04c PatchThird Party Advisory

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Related vulnerabilities

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

9.8CVE-2016-8901B2evolution injection vulnerabilityb2evolution 6.7.6 suffer from an Object Injection vulnerability in /htsrv/call_plugin.php.EPSS 2.4%9.1CVE-2022-30935B2evolution vulnerabilityAn authorization bypass in b2evolution allows remote, unauthenticated attackers to predict password reset tokens for any user through the use of a ba…EPSS 1.4%9.1CVE-2017-5539B2evolution path traversal vulnerabilityThe patch for directory traversal (CVE-2017-5480) in b2evolution version 6.8.4-stable has a bypass vulnerability. An attacker can use ..\/ to bypass …EPSS 4.2%8.8CVE-2021-28242B2evolution sql injection vulnerabilitySQL Injection in the "evoadm.php" component of b2evolution v7.2.2-stable allows remote attackers to obtain sensitive database information by injectin…EPSS 5.0%8.1CVE-2017-5480B2evolution path traversal vulnerabilityDirectory traversal vulnerability in inc/files/files.ctrl.php in b2evolution through 6.8.3 allows remote authenticated users to read or delete arbitr…EPSS 2.5%7.5CVE-2016-9479B2evolution vulnerabilityThe "lost password" functionality in b2evolution before 6.7.9 allows remote attackers to reset arbitrary user passwords via a crafted request.EPSS 1.8%7.5CVE-2007-2681B2evolution vulnerabilityDirectory traversal vulnerability in blogs/index.php in b2evolution 1.6 allows remote attackers to include and execute arbitrary local files via a ..…EPSS 1.5%7.5CVE-2007-2358B2evolution vulnerabilityMultiple PHP remote file inclusion vulnerabilities in b2evolution allow remote attackers to execute arbitrary PHP code via a URL in the (1) inc_path …EPSS 2.5%

Source: NIST National Vulnerability Database (record CVE-2017-1000423), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.