CWE-73
External Control of File Name or Path
The product allows user input to control or influence paths or file names that are used in filesystem operations.
CVE-2026-3892 (GCVE-0-2026-3892)
Vulnerability from cvelistv5 – Published: 2026-05-14 06:44 – Updated: 2026-05-14 10:45
VLAI
Title
Motors – Car Dealer, Classifieds & Listing <= 1.4.107 - Authenticated (Subscriber+) Arbitrary File Deletion via 'stm_dealer_logo_path' Parameter
Summary
The Motors – Car Dealership & Classified Listings Plugin plugin for WordPress is vulnerable to arbitrary file deletion in all versions up to, and including, 1.4.107. This is due to insufficient file path validation in the become-dealer logo upload flow. The plugin allows any authenticated user to set an arbitrary filesystem path via the profile update handler. This makes it possible for authenticated attackers, with subscriber level access and above, to delete arbitrary files on the server.
Severity
8.1 (High)
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| stylemix | Motors – Car Dealership & Classified Listings Plugin |
Affected:
0 , ≤ 1.4.107
(semver)
|
Credits
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CVE-2026-39377 (GCVE-0-2026-39377)
Vulnerability from cvelistv5 – Published: 2026-04-21 00:14 – Updated: 2026-04-21 19:49
VLAI
Title
nbconvert has an Arbitrary File Write via Path Traversal in Cell Attachment Filenames
Summary
The nbconvert tool, jupyter nbconvert, converts Jupyter notebooks to various other formats via Jinja templates. Versions 6.5 through 7.17.0 allow arbitrary file writes to locations outside the intended output directory when processing notebooks containing crafted cell attachment filenames. The `ExtractAttachmentsPreprocessor` passes attachment filenames directly to the filesystem without sanitization, enabling path traversal attacks. This vulnerability provides complete control over both the destination path and file extension. Version 7.17.1 contains a patch.
Severity
6.5 (Medium)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jupyter/nbconvert/security/adv… | x_refsource_CONFIRM |
| https://github.com/jupyter/nbconvert/releases/tag… | x_refsource_MISC |
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CVE-2026-39378 (GCVE-0-2026-39378)
Vulnerability from cvelistv5 – Published: 2026-04-21 00:17 – Updated: 2026-04-21 13:43
VLAI
Title
nbconvert has an Arbitrary File Read via Path Traversal in HTMLExporter Image Embedding
Summary
The nbconvert tool, jupyter nbconvert, converts Jupyter notebooks to various other formats via Jinja templates. In versions 6.5 through 7.17.0, when `HTMLExporter.embed_images=True`, nbconvert's markdown renderer allows arbitrary file read via path traversal in image references. A malicious notebook can exfiltrate sensitive files from the conversion host by embedding them as base64 data URIs in the output HTML. nbconvert 7.17.1 contains a fix. As a workaround, do not enable `HTMLExporter.embed_images`; it is not enabled by default.
Severity
6.5 (Medium)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jupyter/nbconvert/security/adv… | x_refsource_CONFIRM |
| https://github.com/jupyter/nbconvert/releases/tag… | x_refsource_MISC |
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CVE-2026-39907 (GCVE-0-2026-39907)
Vulnerability from cvelistv5 – Published: 2026-04-14 21:21 – Updated: 2026-05-08 14:08
VLAI
Title
Unisys WebPerfect Image Suite 3.0 NTLMv2 Hash Leakage via WCF SOAP
Summary
Unisys WebPerfect Image Suite versions 3.0.3960.22810 and 3.0.3960.22604 expose an unauthenticated WCF SOAP endpoint on TCP port 1208 that accepts unsanitized file paths in the ReadLicense action's LFName parameter, allowing remote attackers to trigger SMB connections and leak NTLMv2 machine-account hashes. Attackers can submit crafted SOAP requests with UNC paths to force the server to initiate outbound SMB connections, exposing authentication credentials that may be relayed for privilege escalation or lateral movement within the network.
Severity
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://gist.github.com/VAMorales/be3e4ed472c5179… | technical-descriptionexploit |
| https://www.unisys.com/solutions/cai/applications/ | product |
| https://www.vulncheck.com/advisories/unisys-webpe… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unisys | WebPerfect Image Suite |
Affected:
3.0.3960.22810
(custom)
Affected: 3.0.3960.22604 (custom) |
Date Public
2026-04-15 00:00
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CVE-2026-40086 (GCVE-0-2026-40086)
Vulnerability from cvelistv5 – Published: 2026-04-10 16:16 – Updated: 2026-04-10 18:29
VLAI
Title
Rembg has a Path Traversal via Custom Model Loading
Summary
Rembg is a tool to remove images background. Prior to 2.0.75, a path traversal vulnerability in the rembg HTTP server allows unauthenticated remote attackers to read arbitrary files from the server's filesystem. By sending a crafted request with a malicious model_path parameter, an attacker can force the server to attempt loading any file as an ONNX model, revealing file existence, permissions, and potentially file contents through error messages. This vulnerability is fixed in 2.0.75.
Severity
5.3 (Medium)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/danielgatis/rembg/security/adv… | x_refsource_CONFIRM |
| https://github.com/danielgatis/rembg/commit/7c76d… | x_refsource_MISC |
| https://github.com/danielgatis/rembg/releases/tag… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| danielgatis | rembg |
Affected:
< 2.0.75
|
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CVE-2026-40342 (GCVE-0-2026-40342)
Vulnerability from cvelistv5 – Published: 2026-04-17 19:22 – Updated: 2026-04-22 13:56
VLAI
Title
Firebird: Path Traversal + Arbitrary File Write Leads to Remote Code Execution
Summary
Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the external engine plugin loader concatenates a user-supplied engine name into a filesystem path without filtering path separators or .. components. An authenticated user with CREATE FUNCTION privileges can use a crafted ENGINE name to load an arbitrary shared library from anywhere on the filesystem via path traversal. The library's initialization code executes immediately during loading, before Firebird validates the module, achieving code execution as the server's OS account. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.
Severity
10 (Critical)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/FirebirdSQL/firebird/security/… | x_refsource_CONFIRM |
| https://github.com/FirebirdSQL/firebird/releases/… | x_refsource_MISC |
| https://github.com/FirebirdSQL/firebird/releases/… | x_refsource_MISC |
| https://github.com/FirebirdSQL/firebird/releases/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| FirebirdSQL | firebird |
Affected:
< 3.0.14
Affected: >= 4.0.0, < 4.0.7 Affected: >= 5.0.0, < 5.0.4 |
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CVE-2026-40370 (GCVE-0-2026-40370)
Vulnerability from cvelistv5 – Published: 2026-05-12 16:59 – Updated: 2026-05-26 16:56
VLAI
Title
SQL Server Remote Code Execution Vulnerability
Summary
External control of file name or path in SQL Server allows an authorized attacker to execute code over a network.
Severity
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
10 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Microsoft SQL Server 2016 Service Pack 3 (GDR) |
Affected:
13.0.0 , < 13.0.6490.1
(custom)
|
|
| Microsoft | Microsoft SQL Server 2016 Service Pack 3 Azure Connect Feature Pack |
Affected:
13.0.0 , < 13.0.7085.1
(custom)
|
|
| Microsoft | Microsoft SQL Server 2017 (CU 31) |
Affected:
14.0.0 , < 14.0.3530.2
(custom)
|
|
| Microsoft | Microsoft SQL Server 2017 (GDR) |
Affected:
14.0.0 , < 14.0.2110.2
(custom)
|
|
| Microsoft | Microsoft SQL Server 2019 (CU 32) |
Affected:
15.0.0.0 , < 15.0.4470.1
(custom)
|
|
| Microsoft | Microsoft SQL Server 2019 (GDR) |
Affected:
15.0.0 , < 15.0.2170.1
(custom)
|
|
| Microsoft | Microsoft SQL Server 2022 (GDR) |
Affected:
16.0.0 , < 16.0.1180.1
(custom)
|
|
| Microsoft | Microsoft SQL Server 2022 for x64-based Systems (CU 24) |
Affected:
16.0.0.0 , < 16.0.4252.3
(custom)
|
|
| Microsoft | Microsoft SQL Server 2025 (CU 4) |
Affected:
17.0.4040.1 , < 17.0.4040.1
(custom)
|
|
| Microsoft | Microsoft SQL Server 2025 for x64-based Systems (GDR) |
Affected:
17.0.1050.2 , < 17.0.1115.1
(custom)
|
Date Public
2026-05-12 14:00
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CVE-2026-40421 (GCVE-0-2026-40421)
Vulnerability from cvelistv5 – Published: 2026-05-12 16:58 – Updated: 2026-05-26 16:56
VLAI
Title
Microsoft Word Information Disclosure Vulnerability
Summary
External control of file name or path in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.
Severity
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|
| Microsoft | Microsoft Office 2019 |
Affected:
19.0.0 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|
| Microsoft | Microsoft Office LTSC 2021 |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|
| Microsoft | Microsoft Office LTSC 2024 |
Affected:
16.0.0 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|
| Microsoft | Microsoft Word 2016 |
Affected:
16.0.1 , < 16.0.5552.1000
(custom)
|
Date Public
2026-05-12 14:00
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CVE-2026-40893 (GCVE-0-2026-40893)
Vulnerability from cvelistv5 – Published: 2026-05-14 15:18 – Updated: 2026-05-14 18:08
VLAI
Title
Gotenberg: ExifTool Dangerous Tag Blocklist Bypass via Group-Prefixed Tag Names Allows Arbitrary File Rename and Move
Summary
Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.31.0, Gotenberg only checks if the tag is exactly FileName, so System:FileName slips right through and ExifTool happily renames the file. This allows remote attackers to move, rename, and change permissions for arbitrary files. This vulnerability is fixed in 8.31.0.
Severity
8.2 (High)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/gotenberg/gotenberg/security/a… | x_refsource_CONFIRM |
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CVE-2026-41088 (GCVE-0-2026-41088)
Vulnerability from cvelistv5 – Published: 2026-05-12 16:58 – Updated: 2026-05-26 16:56
VLAI
Title
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Summary
External control of file name or path in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Severity
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
11 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19044.0 , < 10.0.19044.7291
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.7291
(custom)
|
|
| Microsoft | Windows 11 version 22H3 |
Affected:
10.0.22631.0 , < 10.0.22631.7079
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7079
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.8457
(custom)
|
|
| Microsoft | Windows 11 Version 25H2 |
Affected:
10.0.26200.0 , < 10.0.26200.8457
(custom)
|
|
| Microsoft | Windows 11 version 26H1 |
Affected:
10.0.28000.0 , < 10.0.28000.2113
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5139
(custom)
|
|
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) |
Affected:
10.0.25398.0 , < 10.0.25398.2330
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.32860
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.32860
(custom)
|
Date Public
2026-05-12 14:00
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Mitigation
Phase: Architecture and Design
Description:
- When the set of filenames is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames, and reject all other inputs. For example, ID 1 could map to "inbox.txt" and ID 2 could map to "profile.txt". Features such as the ESAPI AccessReferenceMap provide this capability.
Mitigation
Phases: Architecture and Design, Operation
Description:
- Run your code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict all access to files within a particular directory.
- Examples include the Unix chroot jail and AppArmor. In general, managed code may provide some protection.
- This may not be a feasible solution, and it only limits the impact to the operating system; the rest of your application may still be subject to compromise.
- Be careful to avoid CWE-243 and other weaknesses related to jails.
Mitigation
Phase: Architecture and Design
Description:
- For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Mitigation ID: MIT-5.1
Phase: Implementation
Strategy: Input Validation
Description:
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
- When validating filenames, use stringent allowlists that limit the character set to be used. If feasible, only allow a single "." character in the filename to avoid weaknesses such as CWE-23, and exclude directory separators such as "/" to avoid CWE-36. Use a list of allowable file extensions, which will help to avoid CWE-434.
- Do not rely exclusively on a filtering mechanism that removes potentially dangerous characters. This is equivalent to a denylist, which may be incomplete (CWE-184). For example, filtering "/" is insufficient protection if the filesystem also supports the use of "\" as a directory separator. Another possible error could occur when the filtering is applied in a way that still produces dangerous data (CWE-182). For example, if "../" sequences are removed from the ".../...//" string in a sequential fashion, two instances of "../" would be removed from the original string, but the remaining characters would still form the "../" string.
Mitigation
Phase: Implementation
Description:
- Use a built-in path canonicalization function (such as realpath() in C) that produces the canonical version of the pathname, which effectively removes ".." sequences and symbolic links (CWE-23, CWE-59).
Mitigation
Phases: Installation, Operation
Description:
- Use OS-level permissions and run as a low-privileged user to limit the scope of any successful attack.
Mitigation
Phases: Operation, Implementation
Description:
- If you are using PHP, configure your application so that it does not use register_globals. During implementation, develop your application so that it does not rely on this feature, but be wary of implementing a register_globals emulation that is subject to weaknesses such as CWE-95, CWE-621, and similar issues.
Mitigation
Phase: Testing
Description:
- Use tools and techniques that require manual (human) analysis, such as penetration testing, threat modeling, and interactive tools that allow the tester to record and modify an active session. These may be more effective than strictly automated techniques. This is especially the case with weaknesses that are related to design and business rules.
CAPEC-13: Subverting Environment Variable Values
The adversary directly or indirectly modifies environment variables used by or controlling the target software. The adversary's goal is to cause the target software to deviate from its expected operation in a manner that benefits the adversary.
CAPEC-267: Leverage Alternate Encoding
An adversary leverages the possibility to encode potentially harmful input or content used by applications such that the applications are ineffective at validating this encoding standard.
CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic
This attack targets the encoding of the URL combined with the encoding of the slash characters. An attacker can take advantage of the multiple ways of encoding a URL and abuse the interpretation of the URL. A URL may contain special character that need special syntax handling in order to be interpreted. Special characters are represented using a percentage character followed by two digits representing the octet code of the original character (%HEX-CODE). For instance US-ASCII space character would be represented with %20. This is often referred as escaped ending or percent-encoding. Since the server decodes the URL from the requests, it may restrict the access to some URL paths by validating and filtering out the URL requests it received. An attacker will try to craft an URL with a sequence of special characters which once interpreted by the server will be equivalent to a forbidden URL. It can be difficult to protect against this attack since the URL can contain other format of encoding such as UTF-8 encoding, Unicode-encoding, etc.
CAPEC-72: URL Encoding
This attack targets the encoding of the URL. An adversary can take advantage of the multiple way of encoding an URL and abuse the interpretation of the URL.
CAPEC-76: Manipulating Web Input to File System Calls
An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
CAPEC-78: Using Escaped Slashes in Alternate Encoding
This attack targets the use of the backslash in alternate encoding. An adversary can provide a backslash as a leading character and causes a parser to believe that the next character is special. This is called an escape. By using that trick, the adversary tries to exploit alternate ways to encode the same character which leads to filter problems and opens avenues to attack.
CAPEC-79: Using Slashes in Alternate Encoding
This attack targets the encoding of the Slash characters. An adversary would try to exploit common filtering problems related to the use of the slashes characters to gain access to resources on the target host. Directory-driven systems, such as file systems and databases, typically use the slash character to indicate traversal between directories or other container components. For murky historical reasons, PCs (and, as a result, Microsoft OSs) choose to use a backslash, whereas the UNIX world typically makes use of the forward slash. The schizophrenic result is that many MS-based systems are required to understand both forms of the slash. This gives the adversary many opportunities to discover and abuse a number of common filtering problems. The goal of this pattern is to discover server software that only applies filters to one version, but not the other.
CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic
This attack is a specific variation on leveraging alternate encodings to bypass validation logic. This attack leverages the possibility to encode potentially harmful input in UTF-8 and submit it to applications not expecting or effective at validating this encoding standard making input filtering difficult. UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. Legal UTF-8 characters are one to four bytes long. However, early version of the UTF-8 specification got some entries wrong (in some cases it permitted overlong characters). UTF-8 encoders are supposed to use the "shortest possible" encoding, but naive decoders may accept encodings that are longer than necessary. According to the RFC 3629, a particularly subtle form of this attack can be carried out against a parser which performs security-critical validity checks against the UTF-8 encoded form of its input, but interprets certain illegal octet sequences as characters.