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Analyze » RoundcubePlus » ROU1779964080

Incident Score: Analysis & Impact (ROU1779964080)

The details regarding individual company incidents & reports gives you full view from every side.

Rankiteo Score Impact Analysis

Rankiteo Incident Impact+56
Company Score Before Incident700 / 1000
Company Score After Incident756 / 1000
INCIDENT NUMBERROU1779964080
Type of Cyber IncidentVulnerability
ATTACK VECTORPre-authentication SQL Injection, LDAP autovalues code injection, Stored XSS via draft restore dialog, CSS injection via SVG animate elements, SSRF via crafted local URLs, Session poisoning via Redis/Memcache, Remote image blocking bypass via CSS var()
DATA EXPOSEDUnauthorized data access, database manipulation,...
INCIDENT DATE23/05/2026
STATUSPatched

Key Highlights From The Incident Analysis

  • Timeline of RoundcubePlus's Vulnerability and lateral movement inside company's environment.
  • Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
  • How Rankiteo’s incident engine converts technical details into a normalized incident score.
  • How this cyber incident impacts RoundcubePlus Rankiteo cyber scoring and cyber rating.
  • Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.

Full Incident Analysis Transcript

In this Rankiteo incident briefing, we review the RoundcubePlus breach identified under incident ID ROU1779964080.

The analysis begins with a detailed overview of RoundcubePlus's information like the linkedin page: https://www.linkedin.com/company/roundcubeplus, the number of followers: 13, the industry type: IT Services and IT Consulting and the number of employees: 5 employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 700 and after the incident was 756 with a difference of 56 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on RoundcubePlus and their customers.

On 24 May 2026, Roundcube Webmail disclosed SQL Injection, Code Injection and Stored XSS issues under the banner "Critical Roundcube Webmail Vulnerabilities Patched in Urgent Security Update".

Roundcube Webmail users must update their systems following the disclosure of multiple severe vulnerabilities, including a critical pre-authentication SQL injection flaw that allows attackers to execute malicious database queries without requiring login credentials.

The disruption is felt across the environment, affecting Roundcube Webmail installations (versions 1.6.x and 1.7.x), and exposing Unauthorized data access, database manipulation, or privilege escalation.

In response, moved swiftly to contain the threat with measures like Urgent security patch released (versions 1.6.16 and 1.7.1), and began remediation that includes Upgrade to versions 1.6.16 or 1.7.1; removal of unsafe code evaluation in LDAP autovalues; fixes for HTML/CSS/SVG injection vectors; SSRF and session poisoning mitigations.

The case underscores how Patched, teams are taking away lessons such as Importance of coordinated vulnerability disclosure and timely patching of critical flaws, especially in internet-facing software, and recommending next steps like Immediately upgrade Roundcube Webmail to versions 1.6.16 or 1.7.1; audit systems for signs of exploitation; implement input sanitization best practices; monitor for unusual database activity, with advisories going out to stakeholders covering All Roundcube Webmail users urged to upgrade immediately to versions 1.6.16 or 1.7.1.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.

MITRE ATT&CK® Correlation Analysis

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with high confidence (90%), supported by evidence indicating pre-authentication SQL injection flaw...without requiring login credentials and External Remote Services (T1133) with moderate to high confidence (80%), supported by evidence indicating roundcube Webmail installations...internet-facing environments. Under the Execution tactic, the analysis identified Command and Scripting Interpreter (T1059) with moderate to high confidence (70%), supported by evidence indicating execute malicious database queries...arbitrary SQL commands and Exploitation for Client Execution (T1203) with moderate to high confidence (80%), supported by evidence indicating code injection flaw in the LDAP autovalues option. Under the Persistence tactic, the analysis identified Browser Extensions (T1176) with moderate confidence (60%), supported by evidence indicating stored XSS vulnerability in the draft restore dialog’s subject field. Under the Privilege Escalation tactic, the analysis identified Exploitation for Privilege Escalation (T1068) with moderate to high confidence (80%), supported by evidence indicating risking...privilege escalation via SQL injection. Under the Defense Evasion tactic, the analysis identified Obfuscated Files or Information (T1027) with moderate to high confidence (70%), supported by evidence indicating preg_replace backslash escape bypass...improper input sanitization, BITS Jobs (T1197) with moderate confidence (50%), supported by evidence indicating remote resource fetch bypass when blocking external content, and Exploitation for Defense Evasion (T1211) with moderate to high confidence (70%), supported by evidence indicating cSS injection bypass via SVG animate elements in HTML sanitizer. Under the Credential Access tactic, the analysis identified Credentials from Password Stores (T1555) with moderate to high confidence (80%), supported by evidence indicating unauthorized data access...potentially sensitive database contents (e.g., user credentials). Under the Discovery tactic, the analysis identified Account Discovery (T1087) with moderate to high confidence (70%), supported by evidence indicating sQL injection...risking unauthorized data access. Under the Collection tactic, the analysis identified Data from Information Repositories (T1213) with high confidence (90%), supported by evidence indicating execute malicious SQL queries...unauthorized data access. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating database manipulation...potentially sensitive database contents. Under the Impact tactic, the analysis identified Data Destruction (T1485) with moderate confidence (60%), supported by evidence indicating pre-auth arbitrary file deletion via Redis or Memcache session poisoning and Network Denial of Service (T1498) with moderate confidence (50%), supported by evidence indicating sSRF bypass using crafted local address URLs. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Initial Access
Exploit Public-Facing Application (90%)
External Remote Services (80%)
Execution
Command and Scripting Interpreter (70%)
Exploitation for Client Execution (80%)
Persistence
Browser Extensions (60%)
Privilege Escalation
Exploitation for Privilege Escalation (80%)
Defense Evasion
Obfuscated Files or Information (70%)
BITS Jobs (50%)
Exploitation for Defense Evasion (70%)
Credential Access
Credentials from Password Stores (80%)
Discovery
Account Discovery (70%)
Collection
Data from Information Repositories (90%)
Exfiltration
Exfiltration Over C2 Channel (70%)
Impact
Data Destruction (60%)
Network Denial of Service (50%)

Sources & References