Mozilla's Firefox browser is popular for speed, flexibility, and privacy features. Unfortunately, recent findings unveiled a serious security flaw, identified as CVE-2022-1887, that exposed Firefox for iOS to SQL injections. In this detailed post, we'll take a deep dive into the vulnerability and walk you through the exploit details, a code snippet, and links to the original references to help you better understand and protect your systems.

The Vulnerability: SQL Injection in Firefox for iOS < 101

CVE-2022-1887 details a vulnerability in Firefox for iOS affecting versions older than 101. Specifically, the flaw allows a potential attacker to perform an SQL injection by externally specifying a search term. This process can lead to unauthorized access to sensitive data, modification or deletion of the existing data, and even compromise the integrity of the entire application.

Triggering the SQL Injection

To execute this exploit, an attacker must craft the malicious search term that triggers the SQL injection vulnerability. For instance, the search term could include a single quote (') or a semicolon (;) to terminate the existing SQL statement, followed by the injection payload that manipulates the underlying SQLite database.

Here is a simplified example that can lead to an SQL injection

search_term = "'; DROP TABLE users; --"
sql_query = "SELECT * FROM posts WHERE content LIKE '%" + search_term + "%';"

In this case, the attacker uses the termination of the existing SQL query and injects a new query, forcing the application to drop the entire "users" table unintentionally.

Exploiting the Vulnerability

Once the malicious search term is crafted, it must be passed as an external input to the affected Firefox for iOS application. This can be done through various attack vectors, such as direct user input, URL parameters, or hidden form fields. When the application processes the user's externally specified search term, the injected SQL statement will be executed, leading to a successful attack.

Original References and Further Information

The discovery of the CVE-2022-1887 vulnerability was reported by security researchers and disclosed by Mozilla in their official security advisories. Consult the following resources for detailed information on this vulnerability:

1. Mozilla Foundation Security Advisory 2022-110:
2. Mitre's CVE Reference:
3. National Vulnerability Database (NVD) Entry:

Fixing the Issue: Updating Firefox for iOS

To protect your systems from CVE-2022-1887 SQL injection vulnerability, it is crucial to update your Firefox for iOS to version 101 or later. Mozilla has addressed this issue in the latest releases, providing users with enhanced security and preventing any unauthorized access through SQL injections.

Final Thoughts

The CVE-2022-1887 vulnerability exposes outdated Firefox for iOS installations to critical SQL injection attacks. To protect your sensitive data and ensure the security of your application, update your browser immediately and stay informed about the latest security threats and patches. For developers, it is essential to follow secure coding practices and perform vulnerability assessments to prevent similar issues from arising in your applications.


Published on: 12/22/2022 20:15:00 UTC
Last modified on: 12/24/2022 04:23:00 UTC