CVE-2020-18268Public exploitNetwork attack vector

Authenticated phishing redirection via unchecked redirect parameter

Published Jun 7, 2021 · Updated Aug 4, 2024

Open redirect in Z-BlogPHP 1.5.2 and earlier allows remote authenticated users to redirect browsers via zb_system/cmd.php. The login action passes the GET redirect value directly to Redirect when the requester has a logged-in user ID, without restricting the destination. A victim must follow the crafted link, after which the trusted Z-BlogPHP origin sends the browser to an attacker-chosen phishing site.

CVSS severity6.1
Medium
EPSS probability2.69%
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 Z-BlogPHP 1.5.2 and earlier allows remote authenticated users to redirect browsers via zb_system/cmd.php. The login action passes the GET redirect value directly to Redirect when the requester has a logged-in user ID, without restricting the destination. A victim must follow the crafted link, after which the trusted Z-BlogPHP origin sends the browser to an attacker-chosen phishing site.

The record

CVE
CVE-2020-18268
Published
Jun 7, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-601, T1566.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 7, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
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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