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CVE-2026-47687 FOGProject CVE debrief

The FOG Project is vulnerable to a high-severity issue, CVE-2026-47687, which allows an unauthenticated attacker to execute arbitrary JavaScript in an administrator's browser. This issue arises from the `selectForm()` helper in `fogpage.class.php` rendering `<option>` labels using raw, unescaped user input. An 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. This vulnerability affects FOG Project versions prior to 1.5.10.1832 and 1.6.0-beta.2313.

Vendor
FOGProject
Product
Unknown
CVSS
HIGH 7.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-21
Original CVE updated
2026-08-07
Advisory published
2026-07-21
Advisory updated
2026-08-07

Who should care

Administrators and users of the FOG Project, particularly those using versions prior to 1.5.10.1832 and 1.6.0-beta.2313, should be aware of this vulnerability and take necessary actions to mitigate it. This includes updating to the latest version and restricting access to the `/service/inventory.php` endpoint.

Technical summary

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. This vulnerability affects FOG Project versions prior to 1.5.10.1832 and 1.6.0-beta.2313.

Defensive priority

High priority should be given to updating to versions 1.5.10.1832 or 1.6.0-beta.2313, or later, to prevent exploitation of this vulnerability.

Recommended defensive actions

  • Update to version 1.5.10.1832 or 1.6.0-beta.2313, or later
  • Restrict access to the `/service/inventory.php` endpoint
  • Monitor for suspicious activity in the Reports > Inventory section
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-21T21:16:50.680Z and was last modified on 2026-07-22T15:17:18.137Z. The NVD entry is currently receiving updates. This information is based on the NVD entry and CVE record. The details provided are subject to change as more information becomes available. The CVE record and NVD entry provide the most current information on this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-47687 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-47687

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-47687 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-47687

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.