CVE-2026-15918: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-cg6f-7m34-r225
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CVSS 7.5
CWE-89
Published
Advisory Summary

CVE-2026-15918 is a HIGH (CVSS 7.5) security vulnerability vulnerability (CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product constructs all or part of an sql command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended sql command when it is sent to a downstream component. without sufficient removal or quoting of sql syntax in user-controllable inputs, the generated sql query can cause those inputs to be interpreted as sql instead of ordinary user data.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-15918 at a Glance

CVE Identifier CVE-2026-15918
GHSA Identifier GHSA-cg6f-7m34-r225
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-15918

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-15918, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), where the product constructs all or part of an sql command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended sql command when it is sent to a downstream component. without sufficient removal or quoting of sql syntax in user-controllable inputs, the generated sql query can cause those inputs to be interpreted as sql instead of ordinary user data. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

VikAppointments Service Booking Calendar wordpress plugin is vulnerable to unauthenticated SQL injection due to one of the parameters that controls how the public reviews list is sorted is taken from the incoming request and used to build a database query without proper validation or sanitization. Because this value is placed directly into the query, an attacker who is not logged in can inject arbitrary SQL through a normal booking page and read data from the site's database — including sensitive information such as WordPress user credentials. No authentication or special privileges are required

References

NVD — CVE-2026-15918 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-15918
plugins.trac.wordpress.org/browser/vikappointm... WEB
https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/site/helpers/lib.vikappointments.php#L5907
plugins.trac.wordpress.org/browser/vikappointm... WEB
https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/site/helpers/lib.vikappointments.php#L6011
plugins.trac.wordpress.org/browser/vikappointm... WEB
https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/site/views/employeesearch/view.html.php#L74
plugins.trac.wordpress.org/browser/vikappointm... WEB
https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/site/views/servicesearch/view.html.php#L80
www.wordfence.com/threat-intel/vulner... WEB
https://www.wordfence.com/threat-intel/vulnerabilities/id/3d1e49cf-86ac-4368-800a-4e46f72c975d?source=cve

Frequently Asked Questions

What is CVE-2026-15918?
CVE-2026-15918 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection').
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-15918?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-15918?
CVE-2026-15918 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2026-15918?
CVE-2026-15918 is classified under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') (The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.).
How can I check Maven dependencies for CVE-2026-15918?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-cg6f-7m34-r225",
  "modified" : "2026-08-05T06:30:31Z",
  "published" : "2026-08-05T06:30:31Z",
  "aliases" : [ "CVE-2026-15918" ],
  "details" : "VikAppointments Service Booking Calendar wordpress plugin is vulnerable to unauthenticated SQL injection due to one of the parameters that controls how the public reviews list is sorted is taken from the incoming request and used to build a database query without proper validation or sanitization. Because this value is placed directly into the query, an attacker who is not logged in can inject arbitrary SQL through a normal booking page and read data from the site's database — including sensitive information such as WordPress user credentials. No authentication or special privileges are required",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-15918"
  }, {
    "type" : "WEB",
    "url" : "https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/site/helpers/lib.vikappointments.php#L5907"
  }, {
    "type" : "WEB",
    "url" : "https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/site/helpers/lib.vikappointments.php#L6011"
  }, {
    "type" : "WEB",
    "url" : "https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/site/views/employeesearch/view.html.php#L74"
  }, {
    "type" : "WEB",
    "url" : "https://plugins.trac.wordpress.org/browser/vikappointments/tags/1.2.19/site/views/servicesearch/view.html.php#L80"
  }, {
    "type" : "WEB",
    "url" : "https://www.wordfence.com/threat-intel/vulnerabilities/id/3d1e49cf-86ac-4368-800a-4e46f72c975d?source=cve"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-89" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-05T06:16:36Z"
  }
}