CVE-2023-3265
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 · uneditedAn authentication bypass exists on CyberPower PowerPanel Enterprise by failing to sanitize meta-characters from the username, allowing an attacker to login into the application with the default user "cyberpower" by appending a non-printable character.An unauthenticated attacker can leverage this vulnerability to log in to the CypberPower PowerPanel Enterprise as an administrator with hardcoded default credentials.
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 · high confidenceCyberPower PowerPanel Enterprise contains an authentication bypass vulnerability where the application fails to properly sanitize meta-characters from the username parameter. An unauthenticated attacker can bypass authentication by appending a non-printable character to the default 'cyberpower' username, allowing them to gain administrative access with hardcoded default credentials.
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< 2.6.9CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 CyberPower PowerPanel Enterprise is installedLocate the PowerPanel Enterprise application on the system or check installed programs listAffected if The software is present on the system
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Check the installed version numberAccess the application version information through the PowerPanel interface, installation directory, or system registryAffected if The version is below 2.6.9 (any version < 2.6.9)
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Verify the default cyberpower account existsCheck user accounts within the PowerPanel Enterprise administration panel or user configuration filesAffected if The default 'cyberpower' administrative account is present and enabled
A system is affected if CyberPower PowerPanel Enterprise is installed with a version lower than 2.6.9 and the default 'cyberpower' administrative account is active.
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 · scoped2.6.9
Apply the vendor-provided patch or update to CyberPower PowerPanel Enterprise to remediate the input validation flaw. Additionally, change default credentials immediately and review account management policies to prevent use of hardcoded credentials.
PowerPanel Enterprise version 2.6.9 or later
- 1. Back up the current PowerPanel Server configuration and database according to vendor backup procedures
- 2. Download PowerPanel Enterprise version 2.6.9 or later from the official CyberPower website or authorized distribution channel
- 3. Stop the PowerPanel Server service before applying the update
- 4. Install the updated PowerPanel Enterprise version 2.6.9 or later following the vendor's official upgrade documentation
- 5. Restart the PowerPanel Server service after the installation completes
- 6. Verify the application is functioning correctly and the authentication mechanism is working as expected
- 7. Confirm the vulnerability is remediated by testing login with the default credentials and ensuring proper sanitization is applied
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-3265 — 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-2023-3265 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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