CVE-2026-33739: FOG is a free open-source cloning/imaging/rescue suite/inventory management system

Q: How do I fix CVE-2026-33739?

fogproject: upgrade to 1.5.10.1812. Exact commands for each OS are on this page.

Q: Is CVE-2026-33739 being exploited?

CVE-2026-33739 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-33739 affect?

CVE-2026-33739 affects fogproject. Severity is medium (CVSS 5.7). FOG is a free open-source cloning/imaging/rescue suite/inventory management system. Prior to 1.5.10.1812, the listing tables on multiple management pages (Host, Storage, Group, Image, Printer, Snapin) are vulnerable to Stored Cross-Site Scr

Q: How urgent is CVE-2026-33739?

Priority 27/100. Public exploit reference

Routine

MEDIUM 5.7UPGRADE

CVE-2026-33739 is a medium-severity flaw (CVSS 5.7) affecting fogproject. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FOG is a free open-source cloning/imaging/rescue suite/inventory management system. Prior to 1.5.10.1812, the listing tables on multiple management pages (Host, Storage, Group, Image, Printer, Snapin) are vulnerable to Stored Cross-Site Scripting (XSS), due to insufficient server-side parameter sanitization in record creations/updates and a lack of HTML escaping in listing tables. Version 1.5.10.1812 patches the issue.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.7 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.2% (top 91%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-03-27
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: fogproject

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-27 20:16 UTCPublished CVE record published
2026-06-17 10:38 UTCUpdated Record last modified

fogproject fogproject UPGRADE

Affected: < 1.5.10.1812

Fixed in: 1.5.10.1812

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy fogproject || rpm -q fogproject || fogproject --version

2. UPGRADE to 1.5.10.1812 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade fogproject

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade fogproject

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-33739?

fogproject: upgrade to 1.5.10.1812. Exact commands for each OS are on this page.

Is CVE-2026-33739 being exploited?

CVE-2026-33739 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-33739 affect?

CVE-2026-33739 affects fogproject. Severity is medium (CVSS 5.7). FOG is a free open-source cloning/imaging/rescue suite/inventory management system. Prior to 1.5.10.1812, the listing tables on multiple management pages (Host, Storage, Group, Image, Printer, Snapin) are vulnerable to Stored Cross-Site Scr

How urgent is CVE-2026-33739?

Priority 27/100. Public exploit reference

Related CVEs

CVE-2026-47689 MEDIUM 4.6 UPGRADE FOG is a free open-source cloning/imaging/rescue suite/inventory management system
CVE-2026-47688 HIGH 8.2 UPGRADE FOG is a free open-source cloning/imaging/rescue suite/inventory management system
CVE-2026-47687 HIGH 7.3 UPGRADE FOG is a free open-source cloning/imaging/rescue suite/inventory management system
CVE-2026-47685 HIGH 7.3 UPGRADE FOG is a free open-source cloning/imaging/rescue suite/inventory management system

References

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