CVE-2026-3468: SonicWall Email Security · Cross-site Scripting
Affects SonicWall Email SecuritySource CVE Database V5
Not known to be exploited · CVSS 4.8 Medium.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 13% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 31 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| SonicWallEmail Security | Affected
| Fixed in– |
AI-suggested
To mitigate CVE-2026-3468, organizations should implement the following specific measures: 1) Restrict administrative access to SonicWall Email Security appliances using network segmentation, VPNs, and IP whitelisting to minimize exposure. 2) Enforce strong, unique passwords and multi-factor authentication (MFA) for all admin accounts to reduce the risk of credential compromise. 3) Monitor and audit administrative logs for unusual activities or repeated failed login attempts that could indicate attempted exploitation. 4) Limit the number of users with administrative privileges and regularly review access rights to ensure least privilege principles. 5) Until a patch is released, consider disabling or restricting web interface features that accept user input or provide administrative functions remotely. 6) Educate administrators about the risks of XSS and the importance of cautious handling of input fields within the appliance. 7) Stay informed through SonicWall advisories and apply security updates promptly once available. 8) Employ web application firewalls (WAFs) or intrusion detection systems (IDS) to detect and block suspicious web requests targeting the appliance’s management interface.
Description
A stored Cross-Site Scripting (XSS) vulnerability has been identified in the SonicWall Email Security appliance due to improper neutralization of user-supplied input during web page generation, allowing a remote authenticated attacker as admin user to potentially execute arbitrary JavaScript code.