# CVE-2026-124570: SourceCodester Online Leave Management System Employee Avatar Upload Extension Master.php cross site scripting

Status: published. Published: 2026-11-09. Updated: 2026-11-09.

A vulnerability was detected in SourceCodester Online Leave Management System 1.0. Affected is an unknown function of the file app/classes/Master.php of the component Employee Avatar Upload Extension. Performing a manipulation of the argument employee avatar filename results in cross site scripting. Remote exploitation of the attack is possible. The exploit is now public and may be used.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- SourceCodester / Online Leave Management System: 1.0 (affected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 4.8 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P; source: CNA: VulDB

- CVSS 3.1: 2.4 (low); CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C; source: CNA: VulDB

- CVSS 3.0: 2.4 (low); CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C; source: CNA: VulDB

- CVSS 2.0: 3.3 (low); AV:N/AC:L/Au:M/C:N/I:P/A:N/E:POC/RL:ND/RC:C; source: CNA: VulDB

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-79, CWE-94

## Exploit evidence

- exploit: https://github.com/cm126261/CVE/issues/1 (CNA: VulDB)

## References

- https://vuldb.com/vuln/432916 (CNA: VulDB; vdb-entry, technical-description)

- https://vuldb.com/vuln/432916/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-124570 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/1035914 (CNA: VulDB; third-party-advisory)

- https://github.com/cm126261/CVE/issues/1 (CNA: VulDB; exploit, issue-tracking)

- https://www.sourcecodester.com/ (CNA: VulDB; product)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-124570; retrieved 2026-11-09; source updated 2026-11-09

Revision: 1ae53b041b822b44ac389c848b94aa6341b65cf1b17a8137bf5d59aad429392c

Canonical: https://y2.dev/cve/CVE-2026-124570

## Agent and API access

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- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

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