CVE-2026-8131
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 security flaw has been discovered in SourceCodester SUP Online Shopping 1.0. This impacts an unknown function of the file /admin/replymsg.php. The manipulation of the argument msgid results in sql injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.
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 confidenceA SQL injection vulnerability exists in SourceCodester SUP Online Shopping 1.0 within the /admin/replymsg.php file. The msgid parameter is not properly sanitized, allowing attackers to inject malicious SQL queries. The vulnerability is remotely exploitable and a public exploit is available, making it easily weaponizable.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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 the installed applicationLocate and verify that SourceCodester SUP Online Shopping version 1.0 is deployed in your environment. Check the application documentation, installation directory, or web root for this specific shopping cart application.Affected if The application is SourceCodester SUP Online Shopping version 1.0
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Verify the vulnerable file existsCheck if the file /admin/replymsg.php exists in your web server's document root or application directory. This is the file containing the vulnerable msgid parameter.Affected if The file /admin/replymsg.php is present in the application
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Confirm admin interface is accessibleDetermine if the /admin/ directory and replymsg.php are accessible over the network. Check web server configuration for any access restrictions on admin paths.Affected if The replymsg.php file is reachable via HTTP/HTTPS requests
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Review access logs for exploitation attemptsExamine web server access logs (e.g., Apache access.log, Nginx access.log) for any requests to /admin/replymsg.php that contain SQL injection payloads in the msgid parameter, such as single quotes, UNION SELECT, or boolean-based injection patterns.Affected if Logs show malicious SQL syntax in msgid parameter requests to replymsg.php
You are affected if you have SourceCodester SUP Online Shopping 1.0 deployed with the /admin/replymsg.php file accessible and the msgid parameter processed without sanitization.
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 dataFix the SQL injection by implementing parameterized queries (prepared statements) or proper input validation/sanitization on the msgid parameter in replymsg.php. Given the CVSS 7.3 score and public exploit availability, this should be prioritized as a high-severity remediation.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-8131 — 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-2026-8131 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