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Common Weakness Enumeration

CWE-693

Discouraged

Protection Mechanism Failure

Abstraction: Pillar · Status: Draft

API response cwe.mitre.org

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

1256 vulnerabilities reference this CWE, most recent first.

CVE-2026-87808 (GCVE-0-2026-87808)

Vulnerability from cvelistv5 – Published: 2026-09-09 11:20 – Updated: 2026-09-09 14:05
VLAI
Title
SiYuan before v3.8.2 Read-Only Boundary Bypass via fullTextSearchBlock
Summary
SiYuan versions <= 3.8.1 contain an incomplete fix for CVE-2026-32767 (GHSA-j7wh-x834-p3r7). The prior fix (commit d5e2d0bc) added an administrator check for SQL mode (method=2) in POST /api/search/fullTextSearchBlock, but the endpoint still does not enforce the application's read-only boundary: for method=2 it forwards caller-supplied SQL to the blocks database query path without calling model.CheckReadonly or CheckReadonlyStatementInBox. As a result, when a workspace runs in read-only mode (--readonly=true), an authenticated administrator can submit arbitrary SQL through /api/search/fullTextSearchBlock and obtain raw read access to the blocks database, even though the dedicated /api/query/sql endpoint is blocked in that mode. Fixed in v3.8.2.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
4.9 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 14:04 UTC
CWE
  • CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
Vendor Product Version
siyuan-note siyuan Affected: 0 , < 3.8.2 (semver)
Unaffected: 3.8.2 (semver)
    cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-26 00:00
Credits
arbor-s
Show details on NVD website
To clipboard 

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CVE-2026-84811 (GCVE-0-2026-84811)

Vulnerability from cvelistv5 – Published: 2026-09-02 16:59 – Updated: 2026-09-03 14:31
VLAI
Title
agentverus-scanner Companion Code Analysis Bypass via Excluded Python Bytecode
Summary
agentverus-scanner fails to analyze compiled Python bytecode files in companion code directories, allowing attackers to bypass security scanning by shipping malicious __pycache__ entries alongside benign source files. Attackers can execute arbitrary Python bytecode on import while the scanner reports a CERTIFIED verdict with high trust scores in both static and semantic analysis modes.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 14:09 UTC
CWE
  • CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
Vendor Product Version
agentverus agentverus-scanner Affected: 0 , ≤ 0.8.1 (semver)
Create a notification for this product.
Date Public
2026-08-10 00:00
Credits
nedlir
Show details on NVD website
To clipboard 

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CVE-2026-84810 (GCVE-0-2026-84810)

Vulnerability from cvelistv5 – Published: 2026-09-02 16:59 – Updated: 2026-09-02 18:02
VLAI
Title
claude-skill-antivirus Analysis Bypass via Manifest-Only Local Directory Scan
Summary
claude-skill-antivirus fails to analyze executable files when scanning local skill directories, reading only SKILL.md while ignoring Python source, bytecode, and other artifacts in the scripts directory. Attackers can distribute skills with malicious code in non-manifest files that receive a SAFE verdict with 100/100 trust score despite containing unanalyzed executable payloads.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 18:02 UTC
CWE
  • CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
Vendor Product Version
claude-world claude-skill-antivirus Affected: 0 , ≤ 2.1.3 (semver)
Create a notification for this product.
Date Public
2026-08-10 00:00
Credits
nedlir
Show details on NVD website
To clipboard 

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CVE-2026-84809 (GCVE-0-2026-84809)

Vulnerability from cvelistv5 – Published: 2026-09-02 16:59 – Updated: 2026-09-04 02:48
VLAI
Title
Tencent AI-Infra-Guard skill-scan Analysis Bypass via Excluded Python Bytecode
Summary
Tencent AI-Infra-Guard's skill-scan component excludes compiled Python bytecode files from analysis by hardcoding __pycache__ directories and .pyc/.pyo/.pyd extensions into skip lists across multiple scanning surfaces. Attackers can distribute skills with benign Python source files alongside malicious compiled bytecode that executes on import while the scanner reports a safe verdict, enabling code execution when operators install the skill.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 02:48 UTC
CWE
  • CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
Vendor Product Version
Tencent AI-Infra-Guard Affected: 0 , < 4.5.2 (semver)
Affected: 4.6.0 , ≤ 4.6.0 (semver)
Create a notification for this product.
Tencent aig-skill-scan Affected: 0 , ≤ 0.2.1 (semver)
Create a notification for this product.
Date Public
2026-08-10 00:00
Credits
nedlir
Show details on NVD website
To clipboard 

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CVE-2026-82855 (GCVE-0-2026-82855)

Vulnerability from cvelistv5 – Published: 2026-08-31 08:46 – Updated: 2026-08-31 14:40
VLAI
Title
@hulumi/policies before 1.3.2 Evidence Validation Bypass
Summary
@hulumi/policies versions before 1.3.2 contain an evidence validation bypass vulnerability in Cloudflare and deployment-governance validators that allows attackers to suppress violations by submitting unrelated compliant evidence. Attackers can use evidence from different zones, hostnames, origins, or repositories to bypass security guardrails for unrelated resources in the same stack.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 14:40 UTC
CWE
  • CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
Vendor Product Version
hulumi policies Affected: 0 , < 1.3.2 (semver)
Unaffected: 1.3.2 (semver)
Create a notification for this product.
Date Public
2026-05-15 00:00
Show details on NVD website
To clipboard 

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CVE-2026-82474 (GCVE-0-2026-82474)

Vulnerability from cvelistv5 – Published: 2026-08-29 16:35 – Updated: 2026-09-02 17:57
VLAI
Title
Sudo through 1.9.17p2 Intercept Policy Bypass via execveat
Summary
Sudo through 1.9.17p2 fails to apply intercept policy checks to the execveat system call in ptrace-based intercept mode. Users permitted to run specific commands can execute denied programs by calling execveat directly or through fexecve, bypassing policy enforcement and logging.
Severity
8.5 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 17:57 UTC
CWE
  • CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
Vendor Product Version
sudo-project sudo Affected: 0 , ≤ 1.9.17p2 (custom)
    cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-03-20 00:00
Credits
XlabAI Team of Tencent Xuanwu Lab Guannan Wang Zhanpeng Liu Guancheng Li Nofil Qasim Quentin Chalabi
Show details on NVD website
To clipboard 

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CVE-2026-81376 (GCVE-0-2026-81376)

Vulnerability from cvelistv5 – Published: 2026-09-08 17:13 – Updated: 2026-09-17 19:57
VLAI
Title
Visual Studio Code Security Feature Bypass Vulnerability
Summary
Incomplete comparison with missing factors in Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.
Severity
9.6 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 04:26 UTC
CWE
  • CWE-1023 - Incomplete Comparison with Missing Factors
  • CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
Vendor Product Version
Microsoft Visual Studio Code Affected: 1.0.0 , < 1.136.2 (custom)
    cpe:2.3:a:microsoft:visual_studio_code:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-08 14:00
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CVE-2026-80198 (GCVE-0-2026-80198)

Vulnerability from cvelistv5 – Published: 2026-08-25 23:19 – Updated: 2026-08-28 22:44
VLAI
Title
Kimai before 2.56.0 Information Disclosure via config() Twig Function
Summary
Kimai versions before 2.56.0 fail to restrict the config() Twig function in sandboxed invoice and export templates, allowing administrators to access arbitrary configuration keys. Attackers with admin privileges can upload malicious templates to exfiltrate server-wide secrets including LDAP bind passwords and SAML private keys into invoice or export documents accessible to lower-privileged users.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 22:43 UTC
CWE
  • CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
Vendor Product Version
kimai kimai Affected: 0 , < 2.56.0 (semver)
Unaffected: 2.56.0 (semver)
    cpe:2.3:a:kimai:kimai:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-04-27 00:00
Credits
fg0x0
Show details on NVD website
To clipboard 

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CVE-2026-79988 (GCVE-0-2026-79988)

Vulnerability from cvelistv5 – Published: 2026-08-27 15:36 – Updated: 2026-08-28 16:51
VLAI
Title
Authenticated RCE through Twig sandbox escape
Summary
The Twig sandbox mechanism in Craft CMS is configured to allow dangerous functionality from the Yii framework, leading to authenticated RCE similar to previously disclosed vulnerabilities.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 03:55 UTC
CWE
  • CWE-693 - Protection Mechanism Failure
Assigner
References
URL Tags
https://www.hckrt.com/hacktivity/HCKRT-8RQQ7K third-party-advisorytechnical-descriptionmitigation
https://github.com/craftcms/cms/releases/tag/5.10.7 release-notes
https://github.com/craftcms/cms product
Impacted products
Vendor Product Version
craftcms cms Affected: 4.0.0-RC1 , < 4.18.3 (semver)
Affected: 5.0.0-RC1 , < 5.10.7 (semver)
    cpe:2.3:a:craftcms:cms:*:*:*:*:*:*:*:*
    cpe:2.3:a:craftcms:cms:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Oskar Zeino-Mahmalat (@oskar-cure53) Hackrate
Show details on NVD website
To clipboard 

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CVE-2026-79774 (GCVE-0-2026-79774)

Vulnerability from cvelistv5 – Published: 2026-08-25 15:16 – Updated: 2026-08-26 16:11
VLAI
Title
Winter CMS before 1.2.13 Twig Sandbox Escape via SecurityPolicy
Summary
Winter CMS versions before 1.2.13 contain an incomplete fix for a Twig sandbox escape vulnerability in System\\Twig\\SecurityPolicy that allows authenticated backend users with template-editing permissions to bypass sandbox restrictions. Attackers can exploit method forwarding through Eloquent models and query builders using methods like saveQuietly(), deleteQuietly(), increment(), decrement(), and newQuery() to read and modify arbitrary database records, execute arbitrary SQL, and achieve remote code execution by injecting PHP into template code sections.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
8.4 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 15:57 UTC
CWE
  • CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
Vendor Product Version
wintercms winter Affected: 1.2.7 , < 1.2.13 (semver)
Unaffected: 1.2.13 (semver)
    cpe:2.3:a:wintercms:winter:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-07 00:00
Credits
M9nx
Show details on NVD website
To clipboard 

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            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-693",
              "description": "Protection Mechanism Failure",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-25T15:16:05.738Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-8cfw-pcwh-v63w)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/wintercms/winter/security/advisories/GHSA-8cfw-pcwh-v63w"
        },
        {
          "name": "Patch Commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/wintercms/winter/commit/725bbcda232466f7f71381c271c6916573d576e6"
        },
        {
          "name": "VulnCheck Advisory: Winter CMS before 1.2.13 Twig Sandbox Escape via SecurityPolicy",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/winter-cms-before-twig-sandbox-escape-via-securitypolicy"
        }
      ],
      "title": "Winter CMS before 1.2.13 Twig Sandbox Escape via SecurityPolicy",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-79774",
    "datePublished": "2026-08-25T15:16:05.738Z",
    "dateReserved": "2026-08-25T14:29:43.528Z",
    "dateUpdated": "2026-08-26T16:11:03.275Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

No mitigation information available for this CWE.

CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs

In applications, particularly web applications, access to functionality is mitigated by an authorization framework. This framework maps Access Control Lists (ACLs) to elements of the application's functionality; particularly URL's for web apps. In the case that the administrator failed to specify an ACL for a particular element, an attacker may be able to access it with impunity. An attacker with the ability to access functionality not properly constrained by ACLs can obtain sensitive information and possibly compromise the entire application. Such an attacker can access resources that must be available only to users at a higher privilege level, can access management sections of the application, or can run queries for data that they otherwise not supposed to.

CAPEC-107: Cross Site Tracing

Cross Site Tracing (XST) enables an adversary to steal the victim's session cookie and possibly other authentication credentials transmitted in the header of the HTTP request when the victim's browser communicates to a destination system's web server.

CAPEC-127: Directory Indexing

An adversary crafts a request to a target that results in the target listing/indexing the content of a directory as output. One common method of triggering directory contents as output is to construct a request containing a path that terminates in a directory name rather than a file name since many applications are configured to provide a list of the directory's contents when such a request is received. An adversary can use this to explore the directory tree on a target as well as learn the names of files. This can often end up revealing test files, backup files, temporary files, hidden files, configuration files, user accounts, script contents, as well as naming conventions, all of which can be used by an attacker to mount additional attacks.

CAPEC-17: Using Malicious Files

An attack of this type exploits a system's configuration that allows an adversary to either directly access an executable file, for example through shell access; or in a possible worst case allows an adversary to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.

CAPEC-20: Encryption Brute Forcing

An attacker, armed with the cipher text and the encryption algorithm used, performs an exhaustive (brute force) search on the key space to determine the key that decrypts the cipher text to obtain the plaintext.

CAPEC-22: Exploiting Trust in Client

An attack of this type exploits vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by communicating directly with the server where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.

CAPEC-237: Escaping a Sandbox by Calling Code in Another Language

The attacker may submit malicious code of another language to obtain access to privileges that were not intentionally exposed by the sandbox, thus escaping the sandbox. For instance, Java code cannot perform unsafe operations, such as modifying arbitrary memory locations, due to restrictions placed on it by the Byte code Verifier and the JVM. If allowed, Java code can call directly into native C code, which may perform unsafe operations, such as call system calls and modify arbitrary memory locations on their behalf. To provide isolation, Java does not grant untrusted code with unmediated access to native C code. Instead, the sandboxed code is typically allowed to call some subset of the pre-existing native code that is part of standard libraries.

CAPEC-36: Using Unpublished Interfaces or Functionality

An adversary searches for and invokes interfaces or functionality that the target system designers did not intend to be publicly available. If interfaces fail to authenticate requests, the attacker may be able to invoke functionality they are not authorized for.

CAPEC-477: Signature Spoofing by Mixing Signed and Unsigned Content

An attacker exploits the underlying complexity of a data structure that allows for both signed and unsigned content, to cause unsigned data to be processed as though it were signed data.

CAPEC-480: Escaping Virtualization

An adversary gains access to an application, service, or device with the privileges of an authorized or privileged user by escaping the confines of a virtualized environment. The adversary is then able to access resources or execute unauthorized code within the host environment, generally with the privileges of the user running the virtualized process. Successfully executing an attack of this type is often the first step in executing more complex attacks.

CAPEC-51: Poison Web Service Registry

SOA and Web Services often use a registry to perform look up, get schema information, and metadata about services. A poisoned registry can redirect (think phishing for servers) the service requester to a malicious service provider, provide incorrect information in schema or metadata, and delete information about service provider interfaces.

CAPEC-57: Utilizing REST's Trust in the System Resource to Obtain Sensitive Data

This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to obtain sensitive data once SSL is terminated.

CAPEC-59: Session Credential Falsification through Prediction

This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

CAPEC-65: Sniff Application Code

An adversary passively sniffs network communications and captures application code bound for an authorized client. Once obtained, they can use it as-is, or through reverse-engineering glean sensitive information or exploit the trust relationship between the client and server. Such code may belong to a dynamic update to the client, a patch being applied to a client component or any such interaction where the client is authorized to communicate with the server.

CAPEC-668: Key Negotiation of Bluetooth Attack (KNOB)

An adversary can exploit a flaw in Bluetooth key negotiation allowing them to decrypt information sent between two devices communicating via Bluetooth. The adversary uses an Adversary in the Middle setup to modify packets sent between the two devices during the authentication process, specifically the entropy bits. Knowledge of the number of entropy bits will allow the attacker to easily decrypt information passing over the line of communication.

CAPEC-74: Manipulating State

The adversary modifies state information maintained by the target software or causes a state transition in hardware. If successful, the target will use this tainted state and execute in an unintended manner.

State management is an important function within a software application. User state maintained by the application can include usernames, payment information, browsing history as well as application-specific contents such as items in a shopping cart. Manipulating user state can be employed by an adversary to elevate privilege, conduct fraudulent transactions or otherwise modify the flow of the application to derive certain benefits.

If there is a hardware logic error in a finite state machine, the adversary can use this to put the system in an undefined state which could cause a denial of service or exposure of secure data.

CAPEC-87: Forceful Browsing

An attacker employs forceful browsing (direct URL entry) to access portions of a website that are otherwise unreachable. Usually, a front controller or similar design pattern is employed to protect access to portions of a web application. Forceful browsing enables an attacker to access information, perform privileged operations and otherwise reach sections of the web application that have been improperly protected.

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