What is CVE-2026-33739?

CVE-2026-33739 is a medium-severity vulnerability in Fogproject, classified under Cross-site Scripting. CVSS score: 5.7/10. Published 2026-03-27.

How severe is CVE-2026-33739?

Medium severity. CVSS v3 base score is 5.7 out of 10.

XSS in Fogproject

CVE-2026-33739

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (8.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L.

Affected products

Fogproject — versions < 1.5.10.1812

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-33739?: CVE-2026-33739 is a medium-severity vulnerability in Fogproject, classified under Cross-site Scripting. CVSS score: 5.7/10. Published 2026-03-27.
How severe is CVE-2026-33739?: Medium severity. CVSS v3 base score is 5.7 out of 10.