CVE-2025-34060
Published: 01 July 2025
Summary
CVE-2025-34060 is a critical-severity Improper Input Validation (CWE-20) vulnerability in Swap (inferred from references). Its CVSS base score is 10.0 (Critical).
Operationally, ranked in the top 16.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
A PHP object injection vulnerability exists in the Monero Project’s Laravel-based forum software, stemming from unsafe handling of untrusted input in the /get/image/ endpoint. The application passes a user-supplied link parameter directly to file_get_contents() without validation. MIME type checks using PHP’s finfo can be bypassed via crafted stream filter chains that prepend spoofed headers, allowing access to internal Laravel configuration files. This leads to extraction of the APP_KEY from config/app.php, enabling forged encrypted cookies and unsafe unserialize() calls that result in remote code execution. The issue is tracked as CVE-2025-34060 with a CVSS score of 10.0 and is associated with CWE-20, CWE-502, and CWE-829.
Unauthenticated remote attackers can exploit the flaw over the network without user interaction or credentials. By supplying a malicious link parameter, an attacker can read sensitive configuration data, forge session cookies, and trigger object deserialization to execute arbitrary code on the server, achieving full compromise of the affected forum instance.
The EPSS score remains flat at 0.0189 with no material increase observed since disclosure. Public references at https://swap.gs/posts/monero-forums/ and https://vulncheck.com/advisories/monero-forum-rce provide further technical details on the issue.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-19637
Vulnerability details
A PHP objection injection vulnerability exists in the Monero Project’s Laravel-based forum software due to unsafe handling of untrusted input in the /get/image/ endpoint. The application passes a user-supplied link parameter directly to file_get_contents() without validation. MIME type checks using…
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PHP’s finfo can be bypassed via crafted stream filter chains that prepend spoofed headers, allowing access to internal Laravel configuration files. An attacker can extract the APP_KEY from config/app.php, forge encrypted cookies, and trigger unsafe unserialize() calls, leading to reliable remote code execution.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Security testing and evaluation at multiple SDLC stages directly detects missing or flawed input validation, with the required remediation process ensuring fixes are applied.
Isolated execution prevents functionality from an untrusted sphere from affecting the real environment, allowing safe behavioral inspection.
Directly implements checks on information inputs to reject invalid data before processing.
Detects and prevents inclusion of malicious functionality downloaded from untrusted control spheres.
Provenance of associated data allows detection of untrusted sources before deserialization or processing occurs.
Penetration testing supplies malicious serialized objects, detecting unsafe deserialization and supporting corrective actions.
Limiting P2P file sharing technology reduces inclusion of functionality or resources from untrusted external control spheres.
Enforcing installation policies prevents users from including functionality obtained from untrusted control spheres.