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CVE-2026-11518

SourceCodester Inventory System User Management users.php cross site scripting

CVSS 5.3 MEDIUMEPSS 0.4%CWE-79CWE-94
Vexday Risk Score
33Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 5.3EPSS 0.4%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
23 May 2026Public PoC
08 Jun 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
A vulnerability was identified in SourceCodester Inventory System 1.0. Affected is an unknown function of the file /users.php of the component User Management Page. The manipulation of the argument fullname/username leads to cross site scripting. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Affected products
SourceCodester · Inventory System
public PoCs found — 2
githubgithub.com/Xmyronn/CVE-2026-11518-XSS★ 0cve_referencegithub.com/Xmyronn/Stored-XSS-in-Inventory-System-using-PHP-and-MySQL.gitunverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References
https://github.com/Xmyronn/Stored-XSS-in-Inventory-System-using-PHP-and-MySQL.githttps://vuldb.com/cve/CVE-2026-11518https://vuldb.com/submit/836289https://vuldb.com/vuln/369138https://vuldb.com/vuln/369138/ctihttps://www.sourcecodester.com/