CVE-2025-13556
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 · uneditedA flaw has been found in Campcodes Online Polling System 1.0. Affected by this vulnerability is an unknown functionality of the file /admin/checklogin.php. Executing a manipulation of the argument myusername can lead to sql injection. The attack can be launched remotely. The exploit has been published and may be used.
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 confidenceSQL injection vulnerability in Campcodes Online Polling System 1.0's /admin/checklogin.php script allows remote attackers to inject malicious SQL queries via the myusername parameter during the authentication process.
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= 1.0CVSS 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 the application is Campcodes Online Polling SystemLocate the application directory or check the web server document root for files matching 'Online Polling System' or look for the application's main entry pointAffected if The installed application is Campcodes Online Polling System
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Verify the version is 1.0Check for a version file, footer text, or metadata within the application that displays the version numberAffected if The installed version is exactly 1.0
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Confirm checklogin.php existsLocate the /admin/checklogin.php file within the application directory structureAffected if The file /admin/checklogin.php exists on the server
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Check if admin endpoint is accessibleAttempt to access the /admin/ directory or check if it is reachable via the web serverAffected if The /admin/ endpoint is publicly or internally accessible
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Examine the myusername parameter handling in checklogin.phpOpen checklogin.php and inspect how the 'myusername' parameter is used in SQL queries - look for direct string concatenation rather than parameterized queriesAffected if The code uses the myusername parameter directly in SQL without prepared statements or parameter binding
You are affected if you are running Campcodes Online Polling System version 1.0 with the /admin/checklogin.php file present and the myusername parameter handled insecurely in SQL queries
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.
From vendor dataReplace dynamic SQL queries with parameterized queries/prepared statements in checklogin.php and implement proper input validation for the myusername parameter.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-13556 — 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-2025-13556 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