CVE-2023-26290

MEDIUM

6.1

CVSS Score

Published: March 29, 2023 at 04:28 PM UTC

Updated: June 17, 2026 at 05:42 AM UTC

2 products affected across 1 vendorWeb SecurityCloud Security Gateway

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Severity

MEDIUM6.1

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Forcepoint Cloud Security Gateway (CSG) Portal on Web Cloud Security Gateway, Email Security Cloud (login_reset_request.mhtml modules), Forcepoint Web Security Portal on Hybrid (login_reset_request.mhtml modules) allows Reflected XSS.This issue affects Cloud Security Gateway (CSG): before 03/29/2023; Web Security: before 03/29/2023.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Cloud Security Gateway · Forcepoint

95%

v < 03/29/2023v < 2023-3-29

Affected range stops below 03/29/2023, so it looks safe — our inference, not a vendor statement

Affected range stops below 2023-3-29, so it looks safe — our inference, not a vendor statement

Web Security · Forcepoint

95%

v < 03/29/2023v < 2023-3-29

Affected range stops below 03/29/2023, so it looks safe — our inference, not a vendor statement

Affected range stops below 2023-3-29, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://support.forcepoint.com/s/article/000041617

References (1)

Vendor Advisory

Source: [email protected]

https://support.forcepoint.com/s/article/000041617

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUMforcepoint

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: CHANGED
Confidentiality: LOW
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-79

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