CVE-2026-75114Network attack vector

Phishing redirects via unvalidated referer

Published Aug 19, 2026 · Updated Aug 21, 2026

Open redirect in YOOtheme ZOO before 4.1.64 allows remote attackers to redirect users to arbitrary external sites via the referer parameter. The CommentController::twitterAuthenticate() handler passes the untrusted referer request value straight to setRedirect() without validating the destination host or scheme. No authentication is required to trigger the redirect, but exploitation still depends on getting a user to follow a crafted link, so the practical consequence is phishing or trust abuse rather than direct server compromise.

CVSS severity5.1
Medium
EPSS probability0.29%
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 YOOtheme ZOO before 4.1.64 allows remote attackers to redirect users to arbitrary external sites via the referer parameter. The CommentController::twitterAuthenticate() handler passes the untrusted referer request value straight to setRedirect() without validating the destination host or scheme. No authentication is required to trigger the redirect, but exploitation still depends on getting a user to follow a crafted link, so the practical consequence is phishing or trust abuse rather than direct server compromise.

The record

CVE
CVE-2026-75114
Published
Aug 19, 2026
Updated
Aug 21, 2026
Vendor
YOOtheme
Product
ZOO
Classifications
CWE-601, T1566.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=1.0.0-4.1.63

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

YOOtheme · ZOOversion=1.0.0-4.1.63

Published CVSS scores

5.1Joomla! ProjectCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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