CVE-2025-69235
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 · uneditedWhale browser before 4.35.351.12 allows an attacker to bypass the Same-Origin Policy in a sidebar environment.
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 · low confidenceWhale browser versions prior to 4.35.351.12 contain a Same-Origin Policy (SOP) bypass vulnerability in its sidebar environment. The SOP is a critical browser security mechanism that restricts cross-origin interactions; bypassing it could allow a malicious page in the sidebar to access sensitive data or perform actions on behalf of the user on other origins.
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< 4.35.351.12CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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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Identify Whale browser versionOpen Whale browser, click the menu button (three lines or gear icon) in the top-right corner, then navigate to 'About Whale' or 'Help > About Whale' to view the installed version numberAffected if the displayed version is a number less than 4.35.351.12 (for example, 4.35.351.10 or any earlier release)
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Verify sidebar environment is in useLook for the Whale sidebar panel on the left side of the browser window; this is typically accessible via the sidebar icon in the toolbar or by enabling it in Settings > SidebarAffected if the sidebar feature is enabled and contains any installed extensions, bookmarks, or apps
A user is affected if they are running any Whale browser version below 4.35.351.12 and have the sidebar feature enabled, as the SOP bypass vulnerability exists specifically within the sidebar environment.
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 · scoped4.35.351.12
Upgrade Whale browser to version 4.35.351.12 or later to obtain the security patch addressing this SOP bypass vulnerability.
4.35.351.12 or later
- Check the current Whale browser version by navigating to Settings > About Whale
- Navigate to the official Whale browser download page at whalebrowser.com or use the built-in update feature
- Download and install Whale browser version 4.35.351.12 or later
- Verify the installation was successful by checking the version in Settings > About Whale
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,720.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-69235 — 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-2025-69235 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
- No spam, self-promotion, credentials, or personal data