Medium 6.1Published Jul 16, 2026

CVE-2026-54728bunkerweb: Improper Input Validation and Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in BunkerWeb

Updated under an hour ago (Oct 27, 2026, 3:40 PM ET)

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It affects bunkerity bunkerweb. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for bunkerity bunkerweb

Exploited in the last 30 days

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.

CVSS: 6.1 MEDIUM (v4.0, CNA)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
Weakness (CWE): CWE-20, CWE-74
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

bunkerity bunkerweb bunkerity:bunkerweb (from the name)	before 1.6.12	CNA record

References

References

https://github.com/bunkerity/bunkerweb/security/advisories/GHSA-254j-92cv-m443	x-refsource-confirm
https://github.com/bunkerity/bunkerweb/commit/685ccbbe7d204132a843a7b7fd802d1bdb3f20a9	x-refsource-misc
https://github.com/bunkerity/bunkerweb/releases/tag/v1.6.12	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.