Unrestricted file upload vulnerability in system/controllers/ajax/attachments.php in Sharetronix 3.1.1.3, 3.1.1, and earlier allows remote attackers to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in an unspecified directory.
Conclusion & alert: CVE-2013-5353 is rated Moderate Risk (56.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.29%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 1.62% | 2.29% | +0.67% |
| 2 | 2025-03-30 | 1.89% | 1.62% | -0.27% |
| 3 | 2025-03-29 | — | 1.89% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
: Per: http://cwe.mitre.org/data/definitions/434.html "CWE-434: Unrestricted Upload of File with Dangerous Type"
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| sharetronix | sharetronix | <= 3.1.1 | cpe:2.3:a:sharetronix:sharetronix:*:*:*:*:*:*:*:* |
| sharetronix | sharetronix | 3.1.1.3 | cpe:2.3:a:sharetronix:sharetronix:3.1.1.3:*:*:*:*:*:*:* |