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Indian Invoicing System EUVD-2026-31616

| CVE-2026-9414 LOW
Cross-site Scripting (XSS) (CWE-79)
2026-05-25 VulDB GHSA-9q6q-6fwh-p665
PHP XSS Indian Invoicing System
2.0
CVSS 4.0 · NVD

Severity by source

NVD PRIMARY
2.0 LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
P
Scope
X

Lifecycle Timeline

2
Analysis Generated
Jun 08, 2026 - 13:24 vuln.today
CVSS changed
May 26, 2026 - 19:37 NVD
3.5 (LOW) 2.0 (LOW)

DescriptionCVE.org

A security flaw has been discovered in SourceCodester Indian Invoicing System up to 0.x/1.0. The impacted element is an unknown function of the file /Invoicing/add_order.php of the component Invoice Template Render Database-Backed. The manipulation of the argument customer_name results in cross site scripting. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

AnalysisAI

Stored cross-site scripting in SourceCodester Indian Invoicing System versions 0.x and 1.0 allows a low-privileged authenticated attacker to inject malicious JavaScript via the customer_name parameter in /Invoicing/add_order.php, which is persisted to the database and executed in the browsers of users who subsequently view the rendered invoice template. A public proof-of-concept exploit is available on GitHub (gist by c4ttr4ck), though EPSS sits at only 0.03% (9th percentile) and the vulnerability is not listed in CISA KEV, indicating no confirmed widespread exploitation. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate with low-privilege account
Delivery
Submit crafted XSS payload in customer_name via /Invoicing/add_order.php
Exploit
Payload persisted to invoice database
Execution
Privileged user views or renders the invoice
Impact
Injected script executes in victim's browser session
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Vulnerability AssessmentAI

Exploitation The attacker must hold a low-privilege authenticated session on the Indian Invoicing System application (confirmed by CVSS PR:L); unauthenticated exploitation is not possible based on the CVSS vector. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base score of 2.0 accurately reflects a low-severity finding: the vector AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N confirms network reachability but requires low-privilege authentication (PR:L) and passive victim interaction (UI:P), with impact confined to low integrity on the vulnerable system only - no confidentiality breach, no availability impact, no scope change to subsequent systems. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated user with low-privilege access (e.g., a clerk or sales role) navigates to the add-order page and submits a new invoice with a crafted `customer_name` value containing a `<script>` payload, which is stored in the database without sanitization. When an administrator or another user later views or prints the invoice - a routine workflow - the stored script executes silently in their browser session, enabling session token theft, credential harvesting, or UI redressing. …
Remediation No vendor-released patch has been identified at time of analysis - no patched version number appears in NVD, VulDB, or EUVD data, and no vendor-issued security advisory was located beyond the SourceCodester product listing. … Detailed patch versions, workarounds, and compensating controls in full report.
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EUVD-2026-31616 vulnerability details – vuln.today
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