EUVD-2026-67144
GHSA-5wxj-x5xj-28rp
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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
Attacker needs no credentials on the target (PR:N); victim must be tricked into visiting a malicious page (UI:R); impact is integrity-only via forged financial records (I:H, C:N, A:N).
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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
Lifecycle Timeline
2DescriptionCVE.org
FrontAccounting through 2.4.20 generates a CSRF token in end_form() in includes/ui/ui_controls.inc and embeds it as the _token hidden field in every form it renders, but only admin/users.php and admin/change_current_user_password.php call check_csrf_token() to validate it. No financial transaction handler validates the token, including gl/gl_journal.php, gl/gl_bank.php, purchasing/supplier_invoice.php, sales/customer_invoice.php, sales/customer_payments.php and admin/company_preferences.php, so those endpoints act on POST data with no origin check. An attacker who gets an authenticated user to load a page under attacker control can auto-submit a cross-origin form to any of them and have the forged journal entry, invoice, customer payment, bank transaction or company configuration change recorded under the victim's session.
AnalysisAI
FrontAccounting 2.4.20 and earlier selectively enforces CSRF validation - tokens are generated for every rendered form but the validation call is absent from all financial transaction handlers, including journal entries, supplier invoices, customer payments, bank transactions, and company configuration. An attacker who can induce an authenticated FrontAccounting user to visit a malicious page can silently forge any of those POST requests under the victim's live session, recording fraudulent accounting data without the victim's awareness. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The victim must have an active authenticated session in FrontAccounting (through 2.4.20) in the same browser profile at the time they visit the attacker-controlled page. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:P, score 7.1) accurately characterises the threat: exploitation is network-reachable with no attack complexity, but user interaction is required (UI:P) - the attacker cannot exploit this purely server-side and must socially engineer an authenticated user. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A researcher disclosure with technical specifics is publicly available at https://github.com/geo-chen/oss/blob/main/FA.md, documenting the affected endpoints and the missing validation calls. An attacker constructs a web page containing a hidden HTML form targeting the victim's FrontAccounting instance - for example, posting a crafted debit/credit pair to gl/gl_journal.php with attacker-chosen amounts and account codes - and uses JavaScript to auto-submit it on page load. … |
| Remediation | No vendor-released patched version has been independently confirmed at time of analysis - the fix status must be verified against the upstream repository at https://github.com/FrontAccountingERP/FA before deployment decisions are made. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: restrict FrontAccounting access to internal networks only and audit recent financial transaction logs for unauthorized entries. …
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External POC / Exploit Code
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