# CVE-2026-15558: CodeAstro Simple Online Leave Management System SQL injection in deletemp.php

Source: https://junglewise.ai/threats/cve-2026-15558-codeastro-simple-online-leave-management-system-sql-injection-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-13. Updated: 2026-07-13  
License: CC BY 4.0 with a link back

CVE-2026-15558 · Severity: medium · CVSS 6.3 · Published 2026-07-13

A security vulnerability exists in the CodeAstro Simple Online Leave Management System, a web application used for managing employee time-off requests. An attacker can exploit this flaw to gain unauthorized access to the underlying database, potentially allowing them to view sensitive employee information or modify records. This could lead to data theft, disruption of administrative operations, and loss of data integrity within the leave management process.

Technologies: [CodeAstro Simple Online Leave Management System](https://junglewise.ai/threats/technologies/simple-online-leave-management-system). Vendors: [CodeAstro](https://junglewise.ai/threats/vendors/codeastro).

## Quick answers

**Is CVE-2026-15558 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-15558 being exploited in the wild.

**How severe is CVE-2026-15558?** Medium severity, with a CVSS score of 6.3, published 13 July 2026.

**Which products and versions are affected?** CodeAstro Simple Online Leave Management System 1.0.

**Is there a fix for CVE-2026-15558?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-15558 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-15558?** Check whether you run CodeAstro Simple Online Leave Management System at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A SQL injection vulnerability exists in CodeAstro Simple Online Leave Management System 1.0 within the '/SimpleOnlineLeave/admin/deletemp.php' file. The root cause is the failure to properly validate, sanitize, or parameterize the 'id' GET parameter before using it in a database query. An attacker with network access and low-level privileges (authenticated as an admin or similar) can provide a malicious payload, such as time-based blind SQL injection strings, to extract data or manipulate the database. A public exploit involving the 'SLEEP' function has been disclosed. Remediation requires implementing prepared statements with parameter binding for all user-supplied inputs.

## Affected products

- CodeAstro Simple Online Leave Management System 1.0

## Timeline

- 2026-06-10: disclosed: Public disclosure via GitHub issue
- 2026-07-13: advisory: CVE published to NVD dataset

## References

- [https://codeastro.com/](https://codeastro.com/)
- [https://github.com/sl1der-fr0g/Findings/issues/2](https://github.com/sl1der-fr0g/Findings/issues/2)
- [https://vuldb.com/cve/CVE-2026-15558](https://vuldb.com/cve/CVE-2026-15558)
- [https://vuldb.com/submit/855188](https://vuldb.com/submit/855188)
- [https://vuldb.com/vuln/377907](https://vuldb.com/vuln/377907)
- [https://vuldb.com/vuln/377907/cti](https://vuldb.com/vuln/377907/cti)

## Related threats

- [CodeAstro Simple Online Leave Management System SQL injection in accept.php](https://junglewise.ai/threats/cve-2026-15559-codeastro-simple-online-leave-management-system-sql-injection-in)
- [CodeAstro Simple Online Leave Management System SQL injection in dashboard.php](https://junglewise.ai/threats/cve-2026-15523-codeastro-simple-online-leave-management-system-sql-injection-in)
- [CodeAstro Simple Online Leave Management System SQL injection in index.php](https://junglewise.ai/threats/cve-2026-15134-codeastro-simple-online-leave-management-system-sql-injection-in)