CVE-2025-8066Public exploitNetwork attack vector

Phishing redirects via protocol-relative next parameter

Published Aug 15, 2025 · Updated Aug 25, 2025

Open redirect in Bunkerity BunkerWeb 1.6.2 through 1.6.3 allows remote attackers to steer users to phishing sites. The /loading endpoint accepts the next parameter as a redirect target and lets percent-encoded protocol-relative URLs resolve to arbitrary external domains. A remote attacker supplies a crafted link; a user must open it and complete login or already hold an authenticated session, enabling credible phishing from a trusted origin.

CVSS severity4.8
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in Bunkerity BunkerWeb 1.6.2 through 1.6.3 allows remote attackers to steer users to phishing sites. The /loading endpoint accepts the next parameter as a redirect target and lets percent-encoded protocol-relative URLs resolve to arbitrary external domains. A remote attacker supplies a crafted link; a user must open it and complete login or already hold an authenticated session, enabling credible phishing from a trusted origin.

The record

CVE
CVE-2025-8066
Published
Aug 15, 2025
Updated
Aug 25, 2025
Vendor
Bunkerity
Product
BunkerWeb
Classifications
CWE-601, CAPEC-98, T1566.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.6.2 <1.6.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Bunkerity · BunkerWebversion=1.6.2 <1.6.4

Published CVSS scores

3.5GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
4.8Fluid AttacksCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
CAPEC-98Phishing
T1566.002Spearphishing Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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