RCE in Stephen-Kruger Bluebox
CVE-2026-14704
A vulnerability was found in stephen-kruger bluebox up to 4.5.12. Affected by this vulnerability is an unknown functionality. Performing a manipulation of the argument code results in cross site scripting. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (39.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Stephen-Kruger Bluebox — versions 4.5.0, 4.5.1, 4.5.2
Weakness classification (CWE)
References
- vuldb.com/vuln/376300 (technical-description, vdb-entry)
- vuldb.com/vuln/376300/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-14704 (third-party-advisory)
- vuldb.com/submit/847357 (third-party-advisory)
- github.com/stephen-kruger/bluebox/issues/32 (issue-tracking)
- github.com/stephen-kruger/bluebox/issues/32 (issue-tracking, exploit)
- github.com/stephen-kruger/bluebox/ (product)
Frequently asked questions
- What is CVE-2026-14704?
- CVE-2026-14704 is a medium-severity vulnerability in Stephen-Kruger Bluebox, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-07-05.
- How severe is CVE-2026-14704?
- Medium severity. CVSS v3 base score is 4.3 out of 10.