CWE-209
AllowedGeneration of Error Message Containing Sensitive Information
Abstraction: Base · Status: Draft
The product generates an error message that includes sensitive information about its environment, users, or associated data.
833 vulnerabilities reference this CWE, most recent first.
GHSA-5X86-XGVW-J25W
Vulnerability from github – Published: 2021-12-14 00:01 – Updated: 2023-04-20 18:30An issue was discovered in /goform/login_process in Reprise RLM 14.2. When an attacker attempts to login, the response if a username is valid includes Login Failed, but does not include this string if the username is invalid. This allows an attacker to enumerate valid users.
{
"affected": [],
"aliases": [
"CVE-2021-44155"
],
"database_specific": {
"cwe_ids": [
"CWE-209"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-12-13T04:15:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in /goform/login_process in Reprise RLM 14.2. When an attacker attempts to login, the response if a username is valid includes Login Failed, but does not include this string if the username is invalid. This allows an attacker to enumerate valid users.",
"id": "GHSA-5x86-xgvw-j25w",
"modified": "2023-04-20T18:30:49Z",
"published": "2021-12-14T00:01:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44155"
},
{
"type": "WEB",
"url": "https://reprisesoftware.com/admin/rlm-admin-download.php?\u0026euagree=yes"
},
{
"type": "WEB",
"url": "https://www.reprisesoftware.com/RELEASE_NOTES"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/165182/Reprise-License-Manager-14.2-User-Enumeration.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-6282-5CPC-5895
Vulnerability from github – Published: 2026-05-06 21:31 – Updated: 2026-05-06 21:31HCL BigFix Service Management (SM) is vulnerable to information exposure due to improper error handling within its reporting module. It was observed that supplying an invalid or out-of-range value to the consumer_company parameter during a report-viewing request causes the application to trigger an unhandled exception.
{
"affected": [],
"aliases": [
"CVE-2025-31960"
],
"database_specific": {
"cwe_ids": [
"CWE-209"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-06T19:16:35Z",
"severity": "MODERATE"
},
"details": "HCL BigFix Service Management (SM) is vulnerable to information exposure due to improper error handling within its reporting module. It was observed that supplying an invalid or out-of-range value to the consumer_company parameter during a report-viewing request causes the application to trigger an unhandled exception.",
"id": "GHSA-6282-5cpc-5895",
"modified": "2026-05-06T21:31:36Z",
"published": "2026-05-06T21:31:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-31960"
},
{
"type": "WEB",
"url": "https://support.hcl-software.com/csm?id=kb_article\u0026sysparm_article=KB0128144"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-62J9-5XW8-8J5F
Vulnerability from github – Published: 2026-01-16 06:30 – Updated: 2026-01-16 06:30The Fancy Product Designer plugin for WordPress is vulnerable to Full Path Disclosure in all versions up to, and including, 6.4.8. This is due to improper error handling in the PDF upload functionality that exposes server filesystem paths and stack traces in error messages. This makes it possible for unauthenticated attackers to retrieve the full path of the web application, which can be used to aid other attacks. The information displayed is not useful on its own, and requires another vulnerability to be present for damage to an affected website.
{
"affected": [],
"aliases": [
"CVE-2025-15526"
],
"database_specific": {
"cwe_ids": [
"CWE-209"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-16T05:16:13Z",
"severity": "MODERATE"
},
"details": "The Fancy Product Designer plugin for WordPress is vulnerable to Full Path Disclosure in all versions up to, and including, 6.4.8. This is due to improper error handling in the PDF upload functionality that exposes server filesystem paths and stack traces in error messages. This makes it possible for unauthenticated attackers to retrieve the full path of the web application, which can be used to aid other attacks. The information displayed is not useful on its own, and requires another vulnerability to be present for damage to an affected website.",
"id": "GHSA-62j9-5xw8-8j5f",
"modified": "2026-01-16T06:30:15Z",
"published": "2026-01-16T06:30:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-15526"
},
{
"type": "WEB",
"url": "https://support.fancyproductdesigner.com/support/discussions/topics/13000036024"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/9b39b4ce-3885-4ea4-8cf0-84e66e7f6a12?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-62XX-CV5C-2CJF
Vulnerability from github – Published: 2022-11-01 12:00 – Updated: 2022-11-03 12:00The application allowed for Unauthenticated User Enumeration by interacting with an unsecured endpoint to retrieve information on each account within the system.
{
"affected": [],
"aliases": [
"CVE-2022-40292"
],
"database_specific": {
"cwe_ids": [
"CWE-209"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-31T21:15:00Z",
"severity": "MODERATE"
},
"details": "The application allowed for Unauthenticated User Enumeration by interacting with an unsecured endpoint to retrieve information on each account within the system.",
"id": "GHSA-62xx-cv5c-2cjf",
"modified": "2022-11-03T12:00:28Z",
"published": "2022-11-01T12:00:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-40292"
},
{
"type": "WEB",
"url": "https://www.themissinglink.com.au/security-advisories/cve-2022-40292"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-65QP-579H-GFWC
Vulnerability from github – Published: 2025-02-21 06:31 – Updated: 2025-02-21 06:31The C9 Blocks plugin for WordPress is vulnerable to Full Path Disclosure in all versions up to, and including, 1.7.7. This is due the plugin containing a publicly accessible composer-setup.php file with error display enabled. This makes it possible for unauthenticated attackers to retrieve the full path of the web application, which can be used to aid other attacks. The information displayed is not useful on its own, and requires another vulnerability to be present for damage to an affected website.
{
"affected": [],
"aliases": [
"CVE-2024-13537"
],
"database_specific": {
"cwe_ids": [
"CWE-209"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-21T04:15:09Z",
"severity": "MODERATE"
},
"details": "The C9 Blocks plugin for WordPress is vulnerable to Full Path Disclosure in all versions up to, and including, 1.7.7. This is due the plugin containing a publicly accessible composer-setup.php file with error display enabled. This makes it possible for unauthenticated attackers to retrieve the full path of the web application, which can be used to aid other attacks. The information displayed is not useful on its own, and requires another vulnerability to be present for damage to an affected website.",
"id": "GHSA-65qp-579h-gfwc",
"modified": "2025-02-21T06:31:09Z",
"published": "2025-02-21T06:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-13537"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/c9-blocks/trunk/composer-setup.php"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e3e682fb-e821-45cb-a087-d97d42a3743e?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-6938-R83G-5RJP
Vulnerability from github – Published: 2025-04-16 18:31 – Updated: 2025-04-16 18:31A vulnerability in Cisco Nexus Dashboard could allow an unauthenticated, remote attacker to enumerate LDAP user accounts.
This vulnerability is due to the improper handling of LDAP authentication requests. An attacker could exploit this vulnerability by sending authentication requests to an affected system. A successful exploit could allow an attacker to determine which usernames are valid LDAP user accounts.
{
"affected": [],
"aliases": [
"CVE-2025-20150"
],
"database_specific": {
"cwe_ids": [
"CWE-209"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-16T16:15:29Z",
"severity": "MODERATE"
},
"details": "A vulnerability in Cisco Nexus Dashboard could allow an unauthenticated, remote attacker to enumerate LDAP user accounts.\n\nThis vulnerability is due to the improper handling of LDAP authentication requests. An attacker could exploit this vulnerability by sending authentication requests to an affected system. A successful exploit could allow an attacker to determine which usernames are valid LDAP user accounts.",
"id": "GHSA-6938-r83g-5rjp",
"modified": "2025-04-16T18:31:50Z",
"published": "2025-04-16T18:31:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20150"
},
{
"type": "WEB",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nd-unenum-2xFFh472"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-69JC-R7P8-4CPG
Vulnerability from github – Published: 2024-02-29 00:30 – Updated: 2025-02-14 18:30Hitachi Vantara Pentaho Data Integration & Analytics versions before 10.1.0.0 and 9.3.0.6, including 9.5.x and 8.3.x, display the version of Tomcat when a server error is encountered.
{
"affected": [],
"aliases": [
"CVE-2023-5617"
],
"database_specific": {
"cwe_ids": [
"CWE-209",
"CWE-550"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-28T23:15:08Z",
"severity": "MODERATE"
},
"details": "Hitachi Vantara Pentaho Data Integration \u0026 Analytics versions before 10.1.0.0 and 9.3.0.6, including\u00a09.5.x and 8.3.x, display the version of Tomcat when a server error is encountered.",
"id": "GHSA-69jc-r7p8-4cpg",
"modified": "2025-02-14T18:30:43Z",
"published": "2024-02-29T00:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-5617"
},
{
"type": "WEB",
"url": "https://support.pentaho.com/hc/en-us/articles/24313358254861--Resolved-Hitachi-Vantara-Pentaho-Data-Integration-Analytics-Server-generated-Error-Message-Containing-Sensitive-Information-Versions-before-10-1-0-0-and-9-3-0-6-including-all-versions-before-10-0-x-Impacted-CVE-2023-5617"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-6G23-6JW5-9VRF
Vulnerability from github – Published: 2022-05-24 17:33 – Updated: 2022-05-24 17:33PackageKit provided detailed error messages to unprivileged callers that exposed information about file presence and mimetype of files that the user would be unable to determine on its own.
{
"affected": [],
"aliases": [
"CVE-2020-16121"
],
"database_specific": {
"cwe_ids": [
"CWE-209"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-11-07T04:15:00Z",
"severity": "LOW"
},
"details": "PackageKit provided detailed error messages to unprivileged callers that exposed information about file presence and mimetype of files that the user would be unable to determine on its own.",
"id": "GHSA-6g23-6jw5-9vrf",
"modified": "2022-05-24T17:33:24Z",
"published": "2022-05-24T17:33:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-16121"
},
{
"type": "WEB",
"url": "https://bugs.launchpad.net/ubuntu/+source/packagekit/+bug/1888887"
},
{
"type": "WEB",
"url": "https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-6G9V-7GQ3-P2C6
Vulnerability from github – Published: 2026-07-01 20:16 – Updated: 2026-07-01 20:16A record user with UPDATE access could read field values that field-level SELECT permissions hid from them. Arithmetic operators and extend embedded the raw operand into their error messages, and UPDATE permission checks evaluate against the unreduced document — so triggering such an error against a hidden field returned its value in the resulting error.
Impact
A record user issues an UPDATE that performs an incompatible operation against a hidden field — e.g. UPDATE person:me SET probe = email + 1 when email is a string — and reads the value from the returned error (Tried to compute "alice@example.com" + 1 …). One field per operation, but the attacker can repeat against any field on any record they can UPDATE.
Patches
A patch has been introduced that replaces the raw operand in every try_* operator and in extend with the operand's type name ("string", "int", "array", etc.).
- Versions 3.1.0 and later are not affected by this issue.
Workarounds
Affected users who are unable to update should not grant UPDATE permission on records whose field-level SELECT permissions are expected to hide values from the same caller.
{
"affected": [
{
"package": {
"ecosystem": "crates.io",
"name": "surrealdb"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.1.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-209"
],
"github_reviewed": true,
"github_reviewed_at": "2026-07-01T20:16:52Z",
"nvd_published_at": null,
"severity": "MODERATE"
},
"details": "A record user with UPDATE access could read field values that field-level SELECT permissions hid from them. Arithmetic operators and `extend` embedded the raw operand into their error messages, and UPDATE permission checks evaluate against the unreduced document \u2014 so triggering such an error against a hidden field returned its value in the resulting error.\n\n### Impact\n\nA record user issues an UPDATE that performs an incompatible operation against a hidden field \u2014 e.g. `UPDATE person:me SET probe = email + 1` when `email` is a string \u2014 and reads the value from the returned error (`Tried to compute \"alice@example.com\" + 1 \u2026`). One field per operation, but the attacker can repeat against any field on any record they can UPDATE.\n\n### Patches\n\nA patch has been introduced that replaces the raw operand in every `try_*` operator and in `extend` with the operand\u0027s type name (`\"string\"`, `\"int\"`, `\"array\"`, etc.).\n\n- Versions 3.1.0 and later are not affected by this issue.\n\n### Workarounds\n\nAffected users who are unable to update should not grant UPDATE permission on records whose field-level SELECT permissions are expected to hide values from the same caller.",
"id": "GHSA-6g9v-7gq3-p2c6",
"modified": "2026-07-01T20:16:52Z",
"published": "2026-07-01T20:16:52Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/surrealdb/surrealdb/security/advisories/GHSA-6g9v-7gq3-p2c6"
},
{
"type": "WEB",
"url": "https://github.com/surrealdb/surrealdb/commit/0aaa332c79195e4c40275eb5224aed3d52f5cf90"
},
{
"type": "PACKAGE",
"url": "https://github.com/surrealdb/surrealdb"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "SurrealDB: Authenticated callers can read fields hidden by field-level SELECT permissions via error messages"
}
GHSA-6HF3-MHGC-CM65
Vulnerability from github – Published: 2026-02-18 22:43 – Updated: 2026-02-20 16:47Vulnerability
In some shared-agent deployments, OpenClaw session tools (sessions_list, sessions_history, sessions_send) allowed broader session targeting than some operators intended. This is primarily a configuration/visibility-scoping issue in multi-user environments where peers are not equally trusted.
In Telegram webhook mode, monitor startup also did not fall back to per-account webhookSecret when only the account-level secret was configured.
Typical Use Case Context
Most regular OpenClaw deployments run a single agent, or run in trusted environments. In those setups, practical risk from this issue is generally low.
Impact
- Shared-agent, multi-user, less-trusted environments: session-tool access could expose transcript content across peer sessions.
- Single-agent or trusted environments: practical impact is limited.
- Telegram webhook mode: account-level secret wiring could be missed unless an explicit monitor webhook secret override was provided.
Affected Packages / Versions
- Package: npm
openclaw - Affected versions:
<= 2026.2.14 - Patched version:
2026.2.15(planned next release)
Remediation
- Add and enforce
tools.sessions.visibility(self | tree | agent | all) across session tools, defaulting totree. - Keep sandbox clamping behavior so sandboxed runs can be restricted to spawned/session-tree visibility.
- Resolve Telegram webhook secret from account config fallback in monitor webhook startup.
Fix Commit(s)
c6c53437f7da033b94a01d492e904974e7bda74c
Thanks @aether-ai-agent for reporting.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "openclaw"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2026.2.15"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-27004"
],
"database_specific": {
"cwe_ids": [
"CWE-209",
"CWE-346"
],
"github_reviewed": true,
"github_reviewed_at": "2026-02-18T22:43:53Z",
"nvd_published_at": "2026-02-20T00:16:17Z",
"severity": "MODERATE"
},
"details": "## Vulnerability\n\nIn some shared-agent deployments, OpenClaw session tools (`sessions_list`, `sessions_history`, `sessions_send`) allowed broader session targeting than some operators intended. This is primarily a configuration/visibility-scoping issue in multi-user environments where peers are not equally trusted.\n\nIn Telegram webhook mode, monitor startup also did not fall back to per-account `webhookSecret` when only the account-level secret was configured.\n\n## Typical Use Case Context\n\nMost regular OpenClaw deployments run a single agent, or run in trusted environments. In those setups, practical risk from this issue is generally low.\n\n## Impact\n\n- Shared-agent, multi-user, less-trusted environments: session-tool access could expose transcript content across peer sessions.\n- Single-agent or trusted environments: practical impact is limited.\n- Telegram webhook mode: account-level secret wiring could be missed unless an explicit monitor webhook secret override was provided.\n\n## Affected Packages / Versions\n\n- Package: npm `openclaw`\n- Affected versions: `\u003c= 2026.2.14`\n- Patched version: `2026.2.15` (planned next release)\n\n## Remediation\n\n- Add and enforce `tools.sessions.visibility` (`self | tree | agent | all`) across session tools, defaulting to `tree`.\n- Keep sandbox clamping behavior so sandboxed runs can be restricted to spawned/session-tree visibility.\n- Resolve Telegram webhook secret from account config fallback in monitor webhook startup.\n\n## Fix Commit(s)\n\n- `c6c53437f7da033b94a01d492e904974e7bda74c`\n\nThanks @aether-ai-agent for reporting.",
"id": "GHSA-6hf3-mhgc-cm65",
"modified": "2026-02-20T16:47:17Z",
"published": "2026-02-18T22:43:53Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-6hf3-mhgc-cm65"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27004"
},
{
"type": "WEB",
"url": "https://github.com/openclaw/openclaw/commit/c6c53437f7da033b94a01d492e904974e7bda74c"
},
{
"type": "PACKAGE",
"url": "https://github.com/openclaw/openclaw"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "OpenClaw session tool visibility hardening and Telegram webhook secret fallback"
}
Mitigation MIT-39
- Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or optimize their original attack, thereby increasing their chances of success.
- If errors must be captured in some detail, record them in log messages, but consider what could occur if the log messages can be viewed by attackers. Highly sensitive information such as passwords should never be saved to log files.
- Avoid inconsistent messaging that might accidentally tip off an attacker about internal state, such as whether a user account exists or not.
Mitigation
Handle exceptions internally and do not display errors containing potentially sensitive information to a user.
Mitigation MIT-33
Strategy: Attack Surface Reduction
Use naming conventions and strong types to make it easier to spot when sensitive data is being used. When creating structures, objects, or other complex entities, separate the sensitive and non-sensitive data as much as possible.
Mitigation MIT-40
Strategy: Compilation or Build Hardening
Debugging information should not make its way into a production release.
Mitigation MIT-40
Strategy: Environment Hardening
Debugging information should not make its way into a production release.
Mitigation
Where available, configure the environment to use less verbose error messages. For example, in PHP, disable the display_errors setting during configuration, or at runtime using the error_reporting() function.
Mitigation
Create default error pages or messages that do not leak any information.
CAPEC-215: Fuzzing for application mapping
An attacker sends random, malformed, or otherwise unexpected messages to a target application and observes the application's log or error messages returned. The attacker does not initially know how a target will respond to individual messages but by attempting a large number of message variants they may find a variant that trigger's desired behavior. In this attack, the purpose of the fuzzing is to observe the application's log and error messages, although fuzzing a target can also sometimes cause the target to enter an unstable state, causing a crash.
CAPEC-463: Padding Oracle Crypto Attack
An adversary is able to efficiently decrypt data without knowing the decryption key if a target system leaks data on whether or not a padding error happened while decrypting the ciphertext. A target system that leaks this type of information becomes the padding oracle and an adversary is able to make use of that oracle to efficiently decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). In addition to performing decryption, an adversary is also able to produce valid ciphertexts (i.e., perform encryption) by using the padding oracle, all without knowing the encryption key.
CAPEC-54: Query System for Information
An adversary, aware of an application's location (and possibly authorized to use the application), probes an application's structure and evaluates its robustness by submitting requests and examining responses. Often, this is accomplished by sending variants of expected queries in the hope that these modified queries might return information beyond what the expected set of queries would provide.
CAPEC-7: Blind SQL Injection
Blind SQL Injection results from an insufficient mitigation for SQL Injection. Although suppressing database error messages are considered best practice, the suppression alone is not sufficient to prevent SQL Injection. Blind SQL Injection is a form of SQL Injection that overcomes the lack of error messages. Without the error messages that facilitate SQL Injection, the adversary constructs input strings that probe the target through simple Boolean SQL expressions. The adversary can determine if the syntax and structure of the injection was successful based on whether the query was executed or not. Applied iteratively, the adversary determines how and where the target is vulnerable to SQL Injection.