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CVE-2026-112353EUVD-2026-111136GHSA-X85G-Q7VC-7JH7

GFI KerioConnect < 10.0.8p2 Stored XSS via SVG Attachment

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 10.0.8p2
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

GFI Kerio Connect's Webmail component is affected by a stored cross-site scripting flaw triggered by a malicious SVG email attachment. An attacker who sends such an attachment could run scripts in a victim's logged-in Webmail session, potentially stealing their credentials and mailbox contents.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

GFI KerioConnect (Kerio Connect) before 10.0.8 Patch 2 contains a stored cross-site scripting vulnerability in the Webmail component that allows a remote attacker to run JavaScript in a victim's authenticated Webmail session by uploading a crafted SVG email attachment that bypasses sanitization of event-handler attributes. Attackers can exploit the temporary-download endpoint's insufficient Content-Security-Policy sandbox to execute scripts when the attachment is opened, enabling theft of the victim's credentials and mailbox contents. Proofpoint Threat Research has observed exploitation in the wild as a credential and mailbox stealer.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  4. Record last updated

Affected versions

  • GFI USA, LLC GFI KerioConnect

    fixed in 10.0.8p2

References 2

gfi.ai

vulncheck.com