CVE-2023-46688Network attack vector

User redirection via untrusted login destination

Published Dec 6, 2023 · Updated Aug 2, 2024

Open redirect in IMPLEM Inc. Pleasanter 1.3.47.0 and earlier allows remote attackers to redirect users through a crafted login URL. The login flow honors an external destination encoded in that URL after authentication instead of restricting redirects to trusted locations. The attacker needs no account, but a targeted user must follow the malicious login URL and complete a normal login before the external redirect occurs.

CVSS severity6.1
Medium
EPSS probability0.53%
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 IMPLEM Inc. Pleasanter 1.3.47.0 and earlier allows remote attackers to redirect users through a crafted login URL. The login flow honors an external destination encoded in that URL after authentication instead of restricting redirects to trusted locations. The attacker needs no account, but a targeted user must follow the malicious login URL and complete a normal login before the external redirect occurs.

The record

CVE
CVE-2023-46688
Published
Dec 6, 2023
Updated
Aug 2, 2024
Vendor
IMPLEM Inc.
Product
Pleasanter
Classifications
CWE-601, T1566.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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?

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

  1. Affected versionversion=1.3.47.0 and earlier

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IMPLEM Inc. · Pleasanterversion=1.3.47.0 and earlier

Published CVSS scores

6.1NIST NVDCVSS: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.

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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')
T1566.002Spearphishing 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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