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Crater Invoice CVE-2026-14791

| EUVDEUVD-2026-41802 LOW
Cross-site Scripting (XSS) (CWE-79)
2026-07-06 VulDB GHSA-pjgh-hr58-wj7w
XSS PHP Crater
2.0
CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY
2.0 MEDIUM
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
vuln.today AI
5.4 MEDIUM

Network-reachable stored XSS requiring low-privilege auth and victim interaction; scope changes to victim browser enabling session-level confidentiality and integrity impact.

3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

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

3
Severity Changed
Jul 06, 2026 - 03:22 NVD
MEDIUM LOW
CVSS changed
Jul 06, 2026 - 03:22 NVD
5.1 (MEDIUM) 2.0 (LOW)
Analysis Generated
Jul 06, 2026 - 03:21 vuln.today

DescriptionCVE.org

A weakness has been identified in crater-invoice-inc crater up to 6.0.6. This affects the function getFormattedString of the file app/Http/Requests/InvoicesRequest.php of the component Invoice Note Handler. Executing a manipulation of the argument notes can lead to cross site scripting. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

AnalysisAI

Cross-site scripting in Crater invoice application (up to v6.0.6) allows an authenticated attacker to inject malicious script payloads via the invoice notes field, executing in the browser of any user who subsequently views the crafted invoice. The vulnerable function getFormattedString in app/Http/Requests/InvoicesRequest.php performs insufficient neutralization of the notes argument, classified under CWE-79. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Recon
Authenticate with low-privilege Crater account
Delivery
Navigate to invoice creation interface
Exploit
Inject XSS payload into notes field
Install
Submit and persist crafted invoice server-side
C2
Victim user opens invoice in browser
Execute
Malicious script executes in victim session
Impact
Exfiltrate session token or perform unauthorized actions
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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid, low-privilege authenticated account in the Crater application with permission to create or edit invoices (PR:L per CVSS 4.0). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 5.1 (Medium) reflects a genuine medium-risk finding. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated attacker with a low-privilege Crater account navigates to invoice creation, enters a JavaScript payload (e.g., a cookie-stealing script) in the notes field, and saves the invoice. When an administrator or accountant subsequently opens the invoice to review or approve it, the malicious script executes in their browser session, potentially exfiltrating their session token to an attacker-controlled server. …
Remediation No vendor-released patch has been identified at time of analysis; the project was notified via GitHub issue #1327 (https://github.com/crater-invoice-inc/crater/issues/1327) but has not responded. … Detailed patch versions, workarounds, and compensating controls in full report.
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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-14791 vulnerability details – vuln.today
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