CVE-2026-42207Public exploitNetwork attack vector

Open redirect via unchecked uenc destination

Published May 15, 2026 · Updated May 15, 2026

Open redirect in OpenMage LTS before 20.18.0 allows remote attackers to redirect logged-in shoppers to external sites via crafted links. The Mage_ProductAlert_AddController::stockAction() method passes the raw uenc value to _redirectUrl() when product_id names no catalog product, without checking that the destination is internal. Product Alerts must be enabled, and a logged-in shopper must follow the link; the resulting 302 response can support credential phishing or malware delivery.

CVSS severity6.1
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Open redirect in OpenMage LTS before 20.18.0 allows remote attackers to redirect logged-in shoppers to external sites via crafted links. The Mage_ProductAlert_AddController::stockAction() method passes the raw uenc value to _redirectUrl() when product_id names no catalog product, without checking that the destination is internal. Product Alerts must be enabled, and a logged-in shopper must follow the link; the resulting 302 response can support credential phishing or malware delivery.

The record

CVE
CVE-2026-42207
Published
May 15, 2026
Updated
May 15, 2026
Vendor
OpenMage
Product
OpenMage LTS
Classifications
CWE-601, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 15, 2026CVE publishedPublication date reported by the CVE source.
  2. May 15, 2026Record 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=< 20.18.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenMage · OpenMage LTSversion=< 20.18.0

Published CVSS scores

6.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A: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 exploitPublished

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1204.001Malicious Link

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo