Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS 4.3 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: Required. Exploitable via remote/network. |
| Exploit ScenarioDerived | A remote attacker could exploit this flaw, cross site scripting. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Mar 12, 2026
Cross-site scripting (XSS) via the hint parameter in Alinto SOGo 5.12.3/5.12.4 allows unauthenticated remote attackers to inject malicious scripts through a user-interactive attack vector. Public exploit code exists for this vulnerability, and the vendor has not provided a patch or responded to disclosure efforts. The impact is limited to integrity compromise with no confidentiality or availability impact.
Earlier versions of this analysis (1)
A vulnerability was identified in Alinto SOGo 5.12.3/5.12.4. This impacts an unknown function. [CVSS 4.3 MEDIUM]
RemediationAI
Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Sogo. A vulnerability was identified in Alinto SOGo 5.12.3/5.12.4. This impacts an unknown function. The manipulation of the argument hint leads to cross site scripting. The attack can be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Know when Sogo gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionCVE.org
A vulnerability was identified in Alinto SOGo 5.12.3/5.12.4. This impacts an unknown function. The manipulation of the argument hint leads to cross site scripting. The attack can be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Executive ViewAI
Organizations using A vulnerability should be aware of moderate risk from CVE-2026-3054, a cross-site scripting vulnerability rated CVSS 4.3. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.
Threat Intelligence Overview
NVD
CVE.org
EPSS
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)CVE.org
Cross-site request forgery (CSRF) vulnerability in SOGo before 3.1.0. Rated high severity (CVSS 8.8), this vulnerability
Alinto Sogo 5.12.3 is vulnerable to Cross Site Scripting (XSS) via the theme parameter.
alinto SOGo 5.12.3 is vulnerable to Cross Site Scripting (XSS) via the "userName" parameter. Rated medium severity (CVSS
Password-reset token interception in SOGo before 5.12.11 lets unauthenticated remote attackers redirect account-recovery
Incomplete blacklist in SOGo before 2.3.12 and 3.x before 3.1.1 allows remote authenticated users to obtain sensitive in
SOGo 2.x before 2.4.1 and 3.x through 5.x before 5.1.1 does not validate the signatures of any SAML assertions it receiv
SQL injection in SOGo versions prior to 5.12.7 allows authenticated users to inject arbitrary SQL when changing their pa
SQL injection in Alinto SOGo versions prior to 5.12.7 allows authenticated remote attackers to manipulate database queri
Memory leak in SOGo 2.3.7 allows remote attackers to cause a denial of service (memory consumption) via a large number o
SOGo before version 5.12.5 contains a cross-site scripting (XSS) vulnerability affecting the events, tasks, and contacts
Multiple cross-site scripting (XSS) vulnerabilities in the Web Calendar in SOGo before 2.2.0 allow remote attackers to i
Multiple cross-site scripting (XSS) vulnerabilities in the View Raw Source page in the Web Calendar in SOGo before 3.1.3
GitHub PoC
Exploit-DB