CVE-2025-2274
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedImproper Neutralization of Input During Web Page Generation in Forcepoint Web Security (On-Prem) on Windows allows Stored XSS.This issue affects Web Security through 8.5.6.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceStored XSS vulnerability in Forcepoint Web Security (On-Prem) on Windows versions through 8.5.6 allows authenticated attackers to inject malicious JavaScript into web pages generated by the application, which executes in victim browsers when they view the affected pages.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 8.5.6CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm Forcepoint Web Security installationOpen Windows Control Panel > Programs and Features, or check for the Forcepoint Web Security service in Services.msc, or look for the installation directory (commonly under C:\Program Files\Forcepoint\ or C:\Program Files (x86)\Forcepoint\)Affected if Forcepoint Web Security (On-Prem) is not installed on the system
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Identify installed versionCheck the program version by right-clicking the Forcepoint executable in the installation folder and selecting Properties > Details, or check the Windows Registry under HKEY_LOCAL_MACHINE\SOFTWARE\Forcepoint\Web Security for a Version valueAffected if The installed version is 8.5.6 or any version lower than 8.5.6 (e.g., 8.5.5, 8.5.4, etc.)
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Verify web interface accessibilityAccess the Forcepoint Web Security admin console via browser (typically https://localhost:8001 or the configured management IP) and navigate to user-facing pages such as the end-user portal, block pages, or reporting interfacesAffected if The web interface is accessible and accepts user input or displays user-controlled content without proper sanitization
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Inspect application logs for XSS indicatorsReview logs in the Forcepoint Web Security log directory (commonly under C:\Program Files\Forcepoint\Web Security\logs\ or C:\ProgramData\Forcepoint\Web Security\logs\) for suspicious patterns such as <script>, javascript:, onerror=, or other XSS payloads in request parametersAffected if Logs contain encoded or raw XSS attack patterns in request fields that indicate potential exploitation attempts
A system is affected if Forcepoint Web Security (On-Prem) for Windows is installed with version 8.5.6 or lower and the web interface is accessible, as this combination enables the stored XSS to execute in victim browsers.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpdate to a patched version beyond 8.5.6 when available; otherwise implement input validation and output encoding on data reflection points, or deploy WAF rules to detect and block XSS attack patterns.
Forcepoint Web Security version > 8.5.6 (contact Forcepoint support for exact fixed release)
- 1. Identify the current Forcepoint Web Security (On-Prem) version installed on the Windows system
- 2. Navigate to the Forcepoint support portal at support.forcepoint.com
- 3. Download and install the latest Forcepoint Web Security release for Windows
- 4. Verify the installation completed successfully
- 5. Test that the XSS vulnerability is no longer present by confirming proper input sanitization in the web interface
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-2274 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-2274 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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