CVE-2023-45698

Information disclosure via unprotected Outlook add-in framing

Published Feb 10, 2024 · Updated Oct 28, 2024

Clickjacking in the Outlook add-in for HCL Sametime allows attackers to disclose information through deceptive interface overlays. The add-in's web interface lacks restrictions that prevent an attacker-controlled page from framing its content and placing deceptive layers over trusted controls. Exploitation requires adjacent-network access and user interaction in versions 11.5, 11.6, 11.6 IF1, 12.0, 12.0 FP1, 12.0.1, and 12.0.1 FP1, with no published integrity or availability impact.

CVSS severity4.8
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Clickjacking in the Outlook add-in for HCL Sametime allows attackers to disclose information through deceptive interface overlays. The add-in's web interface lacks restrictions that prevent an attacker-controlled page from framing its content and placing deceptive layers over trusted controls. Exploitation requires adjacent-network access and user interaction in versions 11.5, 11.6, 11.6 IF1, 12.0, 12.0 FP1, 12.0.1, and 12.0.1 FP1, with no published integrity or availability impact.

The record

CVE
CVE-2023-45698
Published
Feb 10, 2024
Updated
Oct 28, 2024
Vendor
HCL Software
Product
HCL Sametime
Classifications
CWE-1021
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 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=11.5, 11.6, 11.6 IF1, 12.0, 12.0 FP1, 12.0.1, 12.0.1 FP1

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

HCL Software · HCL Sametimeversion=11.5, 11.6, 11.6 IF1, 12.0, 12.0 FP1, 12.0.1, 12.0.1 FP1

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.8HCL SoftwareCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1021Improper Restriction of Rendered UI Layers or Frames

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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