GHSA-9ffq-6457-8958 · Severity: high · Ecosystem: composer — Sharp is Vulnerable to Path Traversal via Unsanitized Extension in FileUtil
Sharp is a content management framework built for Laravel as a package. Versions prior to 9.20.0 have a path traversal vulnerability in the FileUtil class. The application fails to sanitize file extensions properly, allowing path separators to be passed into the storage layer. In `src/Utils/FileUtil.php`, the `FileUtil::explodeExtension()` function extracts a file's extension by splitting the filename at the last dot. This issue has been patched in version 9.20.0 by properly sanitizing the extension using `pathinfo(PATHINFO_EXTENSION)` instead of `strrpos()`, alongside applying strict regex replacements to both the base name and the extension.
Conclusion & alert: CVE-2026-33686 is rated Low Risk (37.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.02%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
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 | 2026-04-21 | 0.06% | 0.02% | -0.04% |
| 2 | 2026-03-27 | — | 0.06% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
GHSA-9ffq-6457-8958 · Severity: high · Ecosystem: composer — Sharp is Vulnerable to Path Traversal via Unsanitized Extension in FileUtil
| URL | Tags |
|---|---|
| https://github.com/code16/sharp/pull/715 | Issue Tracking Patch |
| https://github.com/code16/sharp/security/advisories/GHSA-9ffq-6457-8958 | Vendor Advisory |