CVE-2023-38735Network attack vector

Phishing-site redirection via reverse tabnabbing

Published Oct 22, 2023 · Updated Sep 11, 2024

Reverse tabnabbing in IBM Cognos Dashboards on Cloud Pak for Data 4.7.0 allows remote authenticated users to redirect victims to phishing sites. IBM has not published the affected link-rendering locus or the precise operation that leaves the originating dashboard context controllable. Exploitation requires low-privileged access and victim interaction, and the demonstrated consequence is redirection to a phishing site.

CVSS severity5.7
Medium
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reverse tabnabbing in IBM Cognos Dashboards on Cloud Pak for Data 4.7.0 allows remote authenticated users to redirect victims to phishing sites. IBM has not published the affected link-rendering locus or the precise operation that leaves the originating dashboard context controllable. Exploitation requires low-privileged access and victim interaction, and the demonstrated consequence is redirection to a phishing site.

The record

CVE
CVE-2023-38735
Published
Oct 22, 2023
Updated
Sep 11, 2024
Vendor
IBM
Product
Cognos Dashboards
Classifications
CWE-287, T1566.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 11, 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=4.7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Cognos Dashboardsversion=4.7.0

Published CVSS scores

5.7IBM CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1566.002Phishing: Spearphishing Link

Public exploit references

No public exploit references are available in this record.

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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