CVE-2025-2976Network attack vector

Authenticated script execution via unsanitized uploaded filename

Published Mar 31, 2025 · Updated Mar 31, 2025

Stored cross-site scripting in Kerio Connect 10.0.6 allows remote authenticated users to alter page content through a crafted file name. The file-upload interface places the uploaded name into an input field without sanitizing it, allowing embedded JavaScript to execute when the page is displayed. A low-privilege account and passive interaction by another user are required; execution is confined to that user's browser session.

CVSS severity5.1
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Kerio Connect 10.0.6 allows remote authenticated users to alter page content through a crafted file name. The file-upload interface places the uploaded name into an input field without sanitizing it, allowing embedded JavaScript to execute when the page is displayed. A low-privilege account and passive interaction by another user are required; execution is confined to that user's browser session.

The record

CVE
CVE-2025-2976
Published
Mar 31, 2025
Updated
Mar 31, 2025
Vendor
GFI Software
Product
Kerio Connect
Classifications
CWE-94, CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 31, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GFI Software · Kerio Connectversion=10.0.6

Published CVSS scores

3.5VulDBCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
5.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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