CVE-2026-33686 | code16 sharp up to 9.19.x Management Frame src/Utils/FileUtil.php explodeExtension path traversal (ffq-6457-8958)

VDB-353754 · CVE-2026-33686 · FFQ-6457-8958 CODE16 SHARP UP TO 9.19.X MANAGEMENT FRAME SRC/UTILS/FILEUTIL.PHP EXPLODEEXTENSION PATH TRAVERSAL HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.4 $0-$5k 0.92+ Summaryinfo A vulnerability, which was classified as critical, was found in code16 sharp up to 9.19.x. Impacted is the function FileUtil::explodeExtension of the file src/Utils/FileUtil.php of the component Management Frame Handler. The manipulation results in path traversal. This vulnerability is cataloged as CVE-2026-33686. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component. Detailsinfo A vulnerability classified as critical has been found in code16 sharp up to 9.19.x. Affected is the function FileUtil::explodeExtension of the file src/Utils/FileUtil.php of the component Management Frame Handler. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes: 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. The advisory is available at github.com. This vulnerability is traded as CVE-2026-33686 since 03/23/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project. By approaching the search of inurl:src/Utils/FileUtil.php it is possible to find vulnerable targets with Google Hacking. Upgrading to version 9.20.0 eliminates this vulnerability. Productinfo Vendor code16 Name sharp Version 9.0 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9 9.10 9.11 9.12 9.13 9.14 9.15 9.16 9.17 9.18 9.19 Website Product: https://github.com/code16/sharp/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 7.6 VulDB Meta Temp Score: 7.4 VulDB Base Score: 6.3 VulDB Temp Score: 6.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 8.8 CNA Vector (GitHub_M): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Path traversal CWE: CWE-22 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Google Hack: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: sharp 9.20.0 Timelineinfo 03/23/2026 CVE reserved 03/26/2026 +3 days Advisory disclosed 03/26/2026 +0 days VulDB entry created 03/26/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: ffq-6457-8958 Status: Confirmed CVE: CVE-2026-33686 (🔒) GCVE (CVE): GCVE-0-2026-33686 GCVE (VulDB): GCVE-100-353754 Entryinfo Created: 03/26/2026 23:12 Changes: 03/26/2026 23:12 (67) Complete: 🔍 Cache ID: 99:BEE:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸