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FOG Project CVE-2026-47687

| EUVDEUVD-2026-46414 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-07-21 GitHub_M
7.3
CVSS 3.1 · Vendor: GitHub_M
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Severity by source

Vendor (GitHub_M) PRIMARY
7.3 HIGH
AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
vuln.today AI
9.3 CRITICAL

Injection is network-reachable and unauthenticated (PR:N, only a known MAC needed); payload fires in a different security context - the admin browser - so S:C with UI:R, and admin-session takeover yields high C/I, no availability impact.

3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

3
Patch available
Jul 21, 2026 - 23:36 EUVD
Analysis Generated
Jul 21, 2026 - 21:06 vuln.today
CVE Published
Jul 21, 2026 - 20:39 cve.org
HIGH 7.3

DescriptionCVE.org

FOG is a free open-source cloning/imaging/rescue suite/inventory management system. Prior to versions 1.5.10.1832 and 1.6.0-beta.2313, the selectForm() helper in fogpage.class.php renders <option> labels using raw, unescaped user input. An unauthenticated attacker who knows any registered host's MAC address can POST a malicious sysproduct value to /service/inventory.php, which is stored in the database. When an administrator opens Reports > Inventory, the payload breaks out of the <option> element and executes arbitrary JavaScript in the admin's browser. Versions 1.5.10.1832 and 1.6.0-beta.2313 fix the issue.

AnalysisAI

Stored cross-site scripting in FOG Project before 1.5.10.1832 and 1.6.0-beta.2313 lets an unauthenticated attacker who knows any registered host's MAC address inject arbitrary JavaScript that later runs in an administrator's browser. The payload is delivered through an unauthenticated inventory-reporting endpoint and persisted in the database, then fires when an admin views Reports > Inventory. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Obtain registered host MAC address
Delivery
POST malicious sysproduct to /service/inventory.php
Exploit
Payload stored in FOG database
Execution
Admin opens Reports > Inventory
Persist
Script breaks out of <option> and executes
Impact
Hijack admin session / act as admin

Vulnerability AssessmentAI

Exploitation Exploitation requires (1) knowledge of any registered host's MAC address to submit the malicious inventory record, and (2) a specific stored payload placed in the sysproduct field via the /service/inventory.php inventory-collection endpoint. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The vendor CVSS 3.1 base score is 7.3 (AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N), reflecting a network-reachable, low-complexity attack that requires administrator interaction (viewing the report). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker on the network enumerates or guesses a registered host's MAC address, then POSTs a sysproduct value containing an HTML/JavaScript breakout payload to /service/inventory.php, which stores it unauthenticated. Later a FOG administrator opens Reports > Inventory, the payload escapes the <option> element and executes in the admin's authenticated session, letting the attacker steal the session or perform admin actions such as altering imaging tasks. …
Remediation Vendor-released patch: upgrade to FOG 1.5.10.1832 (stable branch) or 1.6.0-beta.2313 (beta branch), which add output escaping in the selectForm() rendering path; see the advisory at https://github.com/FOGProject/fogproject/security/advisories/GHSA-hg23-3w27-2rf2. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Immediately disable or restrict network access to the inventory-reporting endpoint; identify all FOG Project instances in production and document their versions. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-47687 vulnerability details – vuln.today

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