Weakness (CWE)
CWE-94: Improper Control of Generation of Code
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
How to prevent it (7 mitigations)
-
Architecture and Design
Refactor your program so that you do not have to dynamically generate code.
-
Architecture and Design
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 which code can be executed by your product.
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.
-
Implementation
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.
To reduce the likelihood of code injection, use stringent allowlists that limit which constructs are allowed. If you are dynamically constructing code that invokes a function, then verifying that the input is alphanumeric might be insufficient. An attacker might still be able to reference a dangerous function that you did not intend to allow, such as system(), exec(), or exit().
-
Testing
Use dynamic tools and techniques that interact with the product using large test suites with many diverse inputs, such as fuzz testing (fuzzing), robustness testing, and fault injection. The product's operation may slow down, but it should not become unstable, crash, or generate incorrect results.
-
Operation
Run the code in an environment that performs automatic taint propagation and prevents any command execution that uses tainted variables, such as Perl's "-T" switch. This will force the program to perform validation steps that remove the taint, although you must be careful to correctly validate your inputs so that you do not accidentally mark dangerous inputs as untainted (see CWE-183 and CWE-184).
-
Operation
Run the code in an environment that performs automatic taint propagation and prevents any command execution that uses tainted variables, such as Perl's "-T" switch. This will force the program to perform validation steps that remove the taint, although you must be careful to correctly validate your inputs so that you do not accidentally mark dangerous inputs as untainted (see CWE-183 and CWE-184).
-
Implementation
For Python programs, it is frequently encouraged to use the ast.literal_eval() function instead of eval, since it is intentionally designed to avoid executing code. However, an adversary could still cause excessive memory or stack consumption via deeply nested structures [REF-1372], so the python documentation discourages use of ast.literal_eval() on untrusted data [REF-1373].
Source: MITRE CWE-94
5,297 results · Feed
-
Low 3.5
SourceCodester Inventory Management System Vendor Management vendors_handler.php cross site scripting
A vulnerability was found in SourceCodester Inventory Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /api/vendors_handler.php of the component Vendor Management. Performing a manipulation results in cross site sc…
-
Low 3.5
SourceCodester Inventory Management System Customer Management customers_handler.php cross site scripting
A vulnerability has been found in SourceCodester Inventory Management System 1.0. Affected is an unknown function of the file /api/customers_handler.php of the component Customer Management Module. Such manipulation of the argument Customer_Name leads to cros…
-
Critical 9.4
Joomla Extension - regularlabs.com - Authenticated, privileged remote code execution in Conditional Content extension for Joomla < 8.0.0
Joomla Extension - regularlabs.com - Authenticated, privileged remote code execution in Conditional Content extension for Joomla < 8.0.0 - Conditional Content Pro accepts inline PHP Condition Rules in article syntax. In affected versions, the PHP is passed to…
-
Medium 4.3
SourceCodester Class and Exam Timetabling System subject1.php cross site scripting
A security vulnerability has been detected in SourceCodester Class and Exam Timetabling System 1.0. This affects an unknown part of the file /subject1.php. Such manipulation of the argument subject leads to cross site scripting. The attack can be executed rem…
-
Low 3.5
Totolink A3002MU Anchor Tag cross site scripting
A security flaw has been discovered in Totolink A3002MU Hh-B20211125.1046. This affects an unknown part of the component Anchor Tag Handler. Performing a manipulation results in cross site scripting. Remote exploitation of the attack is possible. The exploit …
-
Low 3.5
Anil-matcha Open-Generative-AI Studio Components ImageStudio.js renderHistory cross site scripting
A vulnerability was determined in Anil-matcha Open-Generative-AI up to 1.0.11/2.0.0. Affected by this vulnerability is the function renderHistory of the file ImageStudio.js of the component Studio Components. This manipulation causes cross site scripting. The…
-
Medium 4.3
kagisearch smallweb Query String Rendering sw.py index cross site scripting
A security flaw has been discovered in kagisearch smallweb up to 0ecb9c48edbf98dc7e934b54fbac43869e64b4cf. The affected element is the function index of the file app/sw.py of the component Query String Rendering. Performing a manipulation of the argument qs r…
-
Medium 6.3
cym1102 nginxWebUI autoUpdate MainController.autoUpdate code injection
A vulnerability was determined in cym1102 nginxWebUI up to 4.4.2. This issue affects the function MainController.autoUpdate of the file /adminPage/main/autoUpdate. This manipulation of the argument url causes code injection. Remote exploitation of the attack …
-
Medium 4.3
Exrick xmall Order Printing order-print.jsp cross site scripting
A vulnerability was found in Exrick xmall up to 19e7917d5ed3bd2a2421a3a246ad494c133ba94c. Impacted is an unknown function of the file xmall-manager-web/src/main/webapp/WEB-INF/jsp/order-print.jsp of the component Order Printing. Performing a manipulation resu…
-
Low 2.4
linlinjava litemall Product Detail index.vue AdminGoodsService.validate cross site scripting
A vulnerability has been found in linlinjava litemall 1.4.0/1.5.0/1.6.0/1.7.0/1.8.0. This issue affects the function AdminGoodsService.validate of the file litemall-vue/src/views/items/detail/index.vue of the component Product Detail. Such manipulation of the…
-
Low 2.4
linlinjava litemall Admin Topic index.vue AdminTopicController.validate cross site scripting
A flaw has been found in linlinjava litemall 1.5.0/1.6.0/1.7.0/1.8.0. This vulnerability affects the function AdminTopicController.validate of the file litemall-vue/src/views/items/topic/index.vue of the component Admin Topic Handler. This manipulation causes…
-
Low 3.5
moxi624 Mogu Blog v2 blogSort Endpoint info.ftl BlogSortServiceImpl.addBlogSort cross site scripting
A vulnerability was detected in moxi624 Mogu Blog v2 up to 5.2. This affects the function BlogSortServiceImpl.addBlogSort of the file mogu_web/src/main/resources/templates/info.ftl of the component blogSort Endpoint. The manipulation of the argument sortName …
-
Low 3.5
quequnlong shiyi-blog Search index.vue highlightKeyword cross site scripting
A security vulnerability has been detected in quequnlong shiyi-blog up to 1.2.1. Affected by this issue is the function highlightKeyword of the file blog-web/src/components/Search/index.vue of the component Search. The manipulation of the argument title/summa…
-
Low 3.5
quequnlong shiyi-blog chat sendMsg Endpoint index.vue SysChatMsgMapper.getChatMsgList cross site scripting
A vulnerability was identified in quequnlong shiyi-blog 1.0.0-1.2.1. This impacts the function SysChatMsgMapper.getChatMsgList of the file blog-web/src/views/chat/index.vue of the component chat sendMsg Endpoint. Such manipulation of the argument chat_msg lea…
-
Low 3.5
maliangnansheng bbs-springboot ArticleController.java utils.toToc cross site scripting
A vulnerability was determined in maliangnansheng bbs-springboot 3.0.0. This affects the function utils.toToc of the file ArticleController.java. This manipulation causes cross site scripting. The attack is possible to be carried out remotely.
-
Low 3.5
DataEase Symbolic Map symbolic-map.ts buildTooltip cross site scripting
A vulnerability has been found in DataEase up to 2.10.25/2.10.26. Affected by this issue is the function buildTooltip of the file core/core-frontend/src/views/chart/components/js/panel/charts/map/symbolic-map.ts of the component Symbolic Map. Such manipulatio…
-
Low 3.5
TDuckApp tduck-platform Form Write View index.vue cross site scripting
A flaw has been found in TDuckApp tduck-platform up to 5.3. Affected by this vulnerability is an unknown functionality of the file tduck-front/src/views/form/write/index.vue of the component Form Write View. This manipulation of the argument submitShowCustomP…
-
Medium 4.3
quequnlong shiyi-blog Add Message API index.vue cross site scripting
A vulnerability was detected in quequnlong shiyi-blog up to 1.2.1. Affected is an unknown function of the file blog-admin/src/views/message/message/index.vue of the component Add Message API. The manipulation of the argument body.content results in cross site…
-
Low 3.5
stilleshan ServerStatus Stats Generation main.cpp cross site scripting
A vulnerability was detected in stilleshan ServerStatus 1.0/2.0. Impacted is an unknown function of the file server/src/main.cpp of the component Stats Generation. Performing a manipulation of the argument custom results in cross site scripting. It is possibl…
-
Low 3.5
Fengoffice Feng Office Task Title Output add_task.php getTitle cross site scripting
A vulnerability was determined in Fengoffice Feng Office up to 3.11.13.11. Affected by this vulnerability is the function getTitle of the file application/views/task/add_task.php of the component Task Title Output. Executing a manipulation of the argument og_…
-
Medium 6.3
sanjevirau gsubs Electron index.js showQuerySuccessPage code injection
A weakness has been identified in sanjevirau gsubs up to 1.0.3. Impacted is the function showQuerySuccessPage of the file renderer/index.js of the component Electron. Executing a manipulation of the argument filename can lead to code injection. The attack may…
-
Low 3.5
Xuxueli xxl-job insert cross site scripting
A vulnerability was identified in Xuxueli xxl-job up to 3.5.0. This vulnerability affects unknown code of the file /jobinfo/insert. Such manipulation of the argument name/author leads to cross site scripting. The attack can be executed remotely. The exploit i…
-
Medium 6.3
Xuxueli xxl-job GlueFactory.java GroovyClassLoader.parseClass code injection
A vulnerability was determined in Xuxueli xxl-job up to 3.4.2. This affects the function GroovyClassLoader.parseClass of the file xxl-job-core/src/main/java/com/xxl/job/core/glue/GlueFactory.java. This manipulation causes code injection. Remote exploitation o…
-
High 7.8
vLLM before 0.28.0 Remote Code Execution via LlavaOnevision2 processor
vLLM before 0.28.0 contains a remote code execution vulnerability in the LlavaOnevision2 processor loader that ignores the trust_remote_code parameter when loading remote processor classes. Attackers can craft a malicious model with arbitrary code in processi…
-
Critical 9.8CVE-2026-78159 Public exploit
The Events Calendar <= 6.17.3 - Unauthenticated Code Injection to Remote Code Execution via Widget 'classes' Map Callable Invocation
The The Events Calendar plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 6.17.3 via the parse_array function. This is due to insufficient validation of the widget 'classes' map, allowing a plain-array payload t…
-
Critical 9.8
CVE-2026-86793
SGLang allows unauthenticated pickle deserialization through /update_weights_from_tensor when no auth keys are configured, and the SafeUnpickler policy can be bypassed because builtins.import and builtins.getattr are resolvable, enabling code execution via pi…
-
Critical 10.0
Teddy Bear Customize Addon <= 1.0.5 - Unauthenticated Arbitrary File Upload
The teddy-bear-customize-addon WordPress plugin through 1.0.5 does not properly validate uploaded files, relying on a client-supplied content type and preserving the original filename, allowing unauthenticated attackers to upload arbitrary PHP files and execu…
-
High 8.8
Certain Woltlab products are affected by RCE via Cache Poisoning. WCF >= 6.1.0 until < 6.1.23 and WCF >= 6.2.0 until < …
-
High 8.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary code due to an unguarded eval() call on attacker-controlled input.
-
High 8.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary code due to an incomplete environment variable blocklist.
-
Critical 9.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction.
-
High 8.8
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary code due to improper neutralization of special characters in flow display names.
-
Medium 6.7
IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple vulnerabilities
IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to a security bypass due to improper authentication controls. A local attacker could exploit this vulnerability to escalate privileges and gain unauthorized access to protected resources.
-
Critical 9.5CVE-2026-88062 Scanner template
OmniRoute ACP Custom-Agent Remote Code Execution (RCE)
OmniRoute is an open-source AI gateway providing a single endpoint for multiple model providers. In 3.8.49 and earlier, the OmniRoute POST /api/acp/agents custom ACP agent endpoint accepted attacker-controlled binary and versionCommand values and used only a …
-
High 7.5
WordPress RepairBuddy plugin <= 4.1224 - Remote Code Execution (RCE) vulnerability
Subscriber Remote Code Execution (RCE) in RepairBuddy <= 4.1224 versions.
-
Medium 6.5
WordPress Simple Cloudflare Turnstile plugin <= 1.42.1 - Content Injection vulnerability
Unauthenticated Content Injection in Simple Cloudflare Turnstile <= 1.42.1 versions.
-
Critical 9.8
Apache Camel K: Camel K Master trait serviceAccountName YAML injection lets CR author apply arbitrary objects
Improper Control of Generation of Code ('Code Injection') vulnerability in Apache Camel K. A YAML injection vulnerability in custom resource configuration allows an authorized CR author to inject arbitrary Kubernetes objects, potentially enabling unauthorized…
-
High 7.7
Velociraptor VQL injection during notebook restore from backup
Velociraptor allows for the creation of notebook backups in its default enabled daily backup feature. When Velociraptor restores the backup, the notebook cell content is interpolated into a template with no ACL checks. This allows a malicious user with NOTEBO…
-
Medium 6.8
An issue in AppFlowy 0.11.8 allows a remote attacker to execute arbitrary code via the afLaunchUri, _afLaunchLocalUri (…
-
Critical 9.8
An issue in Flowise 3.1.2 allows a remote attacker to execute arbitrary code via the /api/v1/prediction/<flowId> endpoi…