CVE-2021-44026: Roundcube Webmail SQL Injection Vulnerability

Vulnerability summary

CVE-2021-44026 is a critical (CVSS 9.8) SQL Injection vulnerability in Roundcube Roundcube Webmail. It is known to be exploited: CISA lists it, first on 22-06-2023. EPSS estimates a 69.88% chance of exploitation in the next 30 days, higher than 99.3% of scored vulnerabilities.

Timeline

1. 19-11-2021
   PublishedVulnerability first disclosed.
2. 22-06-2023
   Added to CISA KEVRoundcube Webmail SQL Injection Vulnerability
3. 13-07-2023
   CISA remediation dueApply updates per vendor instructions.
4. 21-10-2025
   Last modifiedVulnerability information updated.

Description

Roundcube before 1.3.17 and 1.4.x before 1.4.12 is prone to a potential SQL injection via search or search_params.

• CWE-89Improper 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.