CVE-2026-54728

medium

Description

bunkerweb is an Open-source and next-generation Web Application Firewall (WAF). Prior to BunkerWeb 1.6.12 and BunkerWeb PRO 0.57, authenticated Host header handling in the BunkerWeb UI and API improperly validated and neutralized user-controlled input in a configuration-dependent path, allowing a low-privileged authenticated user to escalate privileges and affect confidentiality, integrity, and availability of the BunkerWeb instance. This issue is fixed in BunkerWeb version 1.6.12 and BunkerWeb PRO version 0.57.

References

https://github.com/bunkerity/bunkerweb/security/advisories/GHSA-254j-92cv-m443

https://github.com/bunkerity/bunkerweb/releases/tag/v1.6.12

https://github.com/bunkerity/bunkerweb/commit/685ccbbe7d204132a843a7b7fd802d1bdb3f20a9

Details

Source: Mitre, NVD

Published: 2026-07-16

Updated: 2026-07-16

Risk Information

CVSS v2

Base Score: 8.7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:P/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 6.1

Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: Medium