CVE-2026-31858

HIGH

CraftCMS's `ElementSearchController` Affected by Blind SQL Injection

Published March 11, 2026Updated March 13, 2026Source: osv

Summary

The `ElementSearchController::actionSearch()` endpoint is missing the `unset()` protection that was added to ElementIndexesController in [GHSA-2453-mppf-46cj](https://github.com/craftcms/cms/security/advisories/GHSA-2453-mppf-46cj). The exact same SQL injection vulnerability (including `criteria[orderBy]`, the original advisory vector) works on this controller because the fix was never applied to it. Any authenticated control panel user (no admin required) can inject arbitrary SQL via `criteria[where]`, `criteria[orderBy]`, or other query properties, and extract the full database contents via boolean-based blind injection. Users should update to the patched 5.9.9 release to mitigate the issue.

Remediation

Upgrade to the fixed version using your package manager.

Composer

Update craftcms/cms to 5.9.9 or later

composer require "craftcms/cms:^5.9.9"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Package	Ecosystem	Affected	Fixed In
craftcms/cms	packagist	5.0.0, 5.0.0-RC1, 5.0.1, 5.0.2 (+152 more)	5.9.9

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-89
SQL InjectionMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.8 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

—

Confidentiality

—

Integrity

—

Availability

—

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

Frequently Asked Questions

What is CVE-2026-31858?: CraftCMS's `ElementSearchController` Affected by Blind SQL Injection This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.8/10).
How do I check if my project is affected by CVE-2026-31858?: CVE-2026-31858 affects craftcms/cms. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-31858 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

8.8

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-g7j6-fmwx-7vp8

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