Description
GFI KerioConnect (Kerio Connect) before 10.0.9 Patch 2 contains a cross-site scripting vulnerability in the Webmail component that allows a remote attacker to spoof link targets or inject HTML into a message as rendered in a victim's authenticated Webmail session by sending a crafted email whose text is already inside a link. Attackers can exploit the link auto-formatter's re-processing of already-linked text, using quote characters to break out of the href attribute and inject attacker-controlled markup to execute script in the victim's session.
Published: 2026-10-28
Score: 5.1 Medium
EPSS: n/a
KEV: No
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No solution or workaround provided in the CVE record.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Wed, 28 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 28 Oct 2026 15:45:00 +0000

Type Values Removed Values Added
Description GFI KerioConnect (Kerio Connect) before 10.0.9 Patch 2 contains an HTML injection vulnerability that allows remote attackers to inject malicious markup by crafting emails whose link text contains quote characters, causing the Webmail auto-formatter to break out of the href attribute while re-processing text already inside a link. Attackers can exploit this flaw to spoof link targets or inject arbitrary HTML into the rendered message within a victim's Webmail session. GFI KerioConnect (Kerio Connect) before 10.0.9 Patch 2 contains a cross-site scripting vulnerability in the Webmail component that allows a remote attacker to spoof link targets or inject HTML into a message as rendered in a victim's authenticated Webmail session by sending a crafted email whose text is already inside a link. Attackers can exploit the link auto-formatter's re-processing of already-linked text, using quote characters to break out of the href attribute and inject attacker-controlled markup to execute script in the victim's session.
Title GFI KerioConnect < 10.0.9p2 HTML Injection via Link Auto-Formatter GFI KerioConnect < 10.0.9p2 XSS via Link Auto-Formatter
References

Wed, 28 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Description GFI KerioConnect (Kerio Connect) before 10.0.9 Patch 2 contains an HTML injection vulnerability that allows remote attackers to inject malicious markup by crafting emails whose link text contains quote characters, causing the Webmail auto-formatter to break out of the href attribute while re-processing text already inside a link. Attackers can exploit this flaw to spoof link targets or inject arbitrary HTML into the rendered message within a victim's Webmail session.
Title GFI KerioConnect < 10.0.9p2 HTML Injection via Link Auto-Formatter
Weaknesses CWE-79
CWE-83
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-28T18:03:52.733Z

Reserved: 2026-10-19T14:41:46.703Z

Link: CVE-2026-112356

cve-icon Vulnrichment

Updated: 2026-10-28T16:00:57.792Z

cve-icon NVD

Status : Received

Published: 2026-10-28T16:17:01.663

Modified: 2026-10-28T16:17:01.663

Link: CVE-2026-112356

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-28T17:00:17Z

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

  • CWE-83

    Improper Neutralization of Script in Attributes in a Web Page