November 14, 2026

CVE Watchtower

CVE-2026-124570SourceCodester Online Leave Management System Cross-site Scripting (XSS)

NVD

Vulnerability Summary

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.
Severity Level
MEDIUM(4.8)
Published Date
Nov 9, 2026
Last Modified
Nov 9, 2026
Exploitation Status
Public exploit available
EPSS Score (30-Day)
0.21%Probability
Root Weakness (CWE)
CWE-79: Cross-site Scripting (XSS) β†—
The software does not neutralize user-controllable input before it is placed in output that is used as a web page.
CWE-94: Code Injection β†—
The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended syntax or behavior.
CVSS v4.0 Base Metrics — Score 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
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredHigh
User InteractionPassive
Confidentiality (Vulnerable System)None
Integrity (Vulnerable System)Low
Availability (Vulnerable System)None
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
Show CVSS v3.x metrics (score 2.4)
CVSS v3.1 Base Metrics — Score 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
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionRequired
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

Affected & Patched Versions

Affected Versions
  • SourceCodester Online Leave Management System 1.0
Patched Versions
No patched version published yet
Until a fix ships, reduce exposure:
  • Restrict access to the affected service or interface to trusted networks.
  • Disable the affected feature if you do not need it.
  • Watch the vendor advisory for a firmware or software update.

What to do

Prioritize this fix. Exploit code is public, so attacks can follow quickly.

  1. Check whether you run SourceCodester Online Leave Management System and which version.
  2. No patched version is listed yet. Limit access to the affected service to trusted networks, and disable the feature if you can.
  3. Subscribe to the vendor advisory so you learn when a fix ships.
  4. Review logs and exposed services for signs of earlier compromise.

Timeline

  • Nov 9, 2026Published
  • Nov 9, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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External References

Data last checked: Nov 14, 2026 01:09 UTC