CVE-2026-9542
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 weakness has been identified in CodeAstro Leave Management System 1.0. The affected element is an unknown function of the file /admin/add_staff.php. Executing a manipulation of the argument email_id can lead to sql injection. The attack can be launched remotely. The exploit has been made available to the public and could 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 confidenceSQL injection vulnerability in CodeAstro Leave Management System 1.0 allows remote attackers to execute arbitrary SQL commands via unsanitized email_id parameter in the /admin/add_staff.php file. The lack of input sanitization on this parameter enables attackers to manipulate database queries.
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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:L/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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Confirm CodeAstro Leave Management System is installedLocate the application in your web server's document root. Look for directories or files indicating this specific product, such as leave management related folders or branded files.Affected if The application CodeAstro Leave Management System is present on the server
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Verify the version is 1.0Check the application for version indicators. Common locations include: version.php files, README files, footer/header files with version text, or the application's about/admin pages.Affected if The installed version is 1.0
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Confirm the vulnerable file existsCheck for the presence of /admin/add_staff.php in your web root directory. This file should exist within the application's admin directory structure.Affected if The file /admin/add_staff.php exists in the application directory
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Verify admin interface is accessibleAttempt to access the /admin/ directory or login page through a web browser or curl request. The vulnerability is exploitable if the admin panel is reachable.Affected if The /admin/ interface is accessible without authentication restrictions or after valid admin login
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Review access logs for exploitation attemptsSearch web server access logs (Apache, Nginx, etc.) for requests to add_staff.php containing SQL injection patterns in the email_id parameter, such as quotes, UNION, SELECT, or OR 1=1 constructs.Affected if Log entries show suspicious SQL syntax or known injection payloads in the email_id parameter
You are affected if CodeAstro Leave Management System version 1.0 is installed with the /admin/add_staff.php file accessible and the email_id parameter exposed to user input.
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) for the email_id parameter and all other user inputs in add_staff.php. Apply input validation and ensure proper access controls for the admin interface.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.
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Free · runs locallyCheck whether your project pulls in CVE-2026-9542 — 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-2026-9542 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