Common Weakness Enumeration
CWE-203
AllowedObservable Discrepancy
Abstraction: Base · Status: Incomplete
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.
903 vulnerabilities reference this CWE, most recent first.
GHSA-7C2M-F7CW-58XJ
Vulnerability from github – Published: 2023-04-11 12:30 – Updated: 2023-04-11 12:30
VLAI
Details
A vulnerability has been identified in Mendix Forgot Password (Mendix 7 compatible) (All versions < V3.7.1), Mendix Forgot Password (Mendix 8 compatible) (All versions < V4.1.1), Mendix Forgot Password (Mendix 9 compatible) (All versions < V5.1.1). The affected versions of the module contain an observable response discrepancy issue that could allow an attacker to retrieve sensitive information.
Severity
5.3 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-27464"
],
"database_specific": {
"cwe_ids": [
"CWE-203",
"CWE-204"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-04-11T10:15:00Z",
"severity": "MODERATE"
},
"details": "A vulnerability has been identified in Mendix Forgot Password (Mendix 7 compatible) (All versions \u003c V3.7.1), Mendix Forgot Password (Mendix 8 compatible) (All versions \u003c V4.1.1), Mendix Forgot Password (Mendix 9 compatible) (All versions \u003c V5.1.1). The affected versions of the module contain an observable response discrepancy issue that could allow an attacker to retrieve sensitive information.",
"id": "GHSA-7c2m-f7cw-58xj",
"modified": "2023-04-11T12:30:26Z",
"published": "2023-04-11T12:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27464"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-699404.pdf"
}
],
"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-7CQG-8449-RMFV
Vulnerability from github – Published: 2021-08-25 21:01 – Updated: 2021-07-27 15:21
VLAI
Summary
Observable Discrepancy in libsecp256k1-rs
Details
A timing vulnerability in the Scalar::check_overflow function in Parity libsecp256k1-rs before 0.3.1 potentially allows an attacker to leak information via a side-channel attack.
Severity
5.9 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "crates.io",
"name": "libsecp256k1-rs"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.3.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2019-20399"
],
"database_specific": {
"cwe_ids": [
"CWE-203",
"CWE-362"
],
"github_reviewed": true,
"github_reviewed_at": "2021-07-27T15:21:02Z",
"nvd_published_at": "2020-01-23T00:15:00Z",
"severity": "MODERATE"
},
"details": "A timing vulnerability in the Scalar::check_overflow function in Parity libsecp256k1-rs before 0.3.1 potentially allows an attacker to leak information via a side-channel attack.",
"id": "GHSA-7cqg-8449-rmfv",
"modified": "2021-07-27T15:21:02Z",
"published": "2021-08-25T21:01:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20399"
},
{
"type": "WEB",
"url": "https://github.com/paritytech/libsecp256k1/commit/11ba23a9766a5079918cd9f515bc100bc8164b50"
},
{
"type": "WEB",
"url": "https://rustsec.org/advisories/RUSTSEC-2020-0156.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Observable Discrepancy in libsecp256k1-rs"
}
GHSA-7FJW-2MVJ-PJVV
Vulnerability from github – Published: 2023-10-30 18:30 – Updated: 2023-11-06 18:30
VLAI
Details
In Package Manager, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-21299"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-10-30T17:15:47Z",
"severity": "MODERATE"
},
"details": "In Package Manager, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-7fjw-2mvj-pjvv",
"modified": "2023-11-06T18:30:17Z",
"published": "2023-10-30T18:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-21299"
},
{
"type": "WEB",
"url": "https://source.android.com/docs/security/bulletin/android-14"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-7H2G-P6HQ-VH75
Vulnerability from github – Published: 2026-04-01 18:36 – Updated: 2026-04-01 18:36
VLAI
Details
The login mechanism of Sage DPW 2021_06_004 displays distinct responses for valid and invalid usernames, allowing enumeration of existing accounts in versions before 2021_06_000. On-premise administrators can toggle this behavior in newer versions.
Severity
{
"affected": [],
"aliases": [
"CVE-2025-67806"
],
"database_specific": {
"cwe_ids": [
"CWE-203",
"CWE-204"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-01T16:23:48Z",
"severity": "LOW"
},
"details": "The login mechanism of Sage DPW 2021_06_004 displays distinct responses for valid and invalid usernames, allowing enumeration of existing accounts in versions before 2021_06_000. On-premise administrators can toggle this behavior in newer versions.",
"id": "GHSA-7h2g-p6hq-vh75",
"modified": "2026-04-01T18:36:36Z",
"published": "2026-04-01T18:36:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-67806"
},
{
"type": "WEB",
"url": "https://pastebin.com/Tk4LgMG2"
},
{
"type": "WEB",
"url": "https://www.sagedpw.at"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-7HM5-8CP5-VQP5
Vulnerability from github – Published: 2022-05-24 19:04 – Updated: 2022-05-24 19:04
VLAI
Details
Observable timing discrepancy in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
{
"affected": [],
"aliases": [
"CVE-2020-24512"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-06-09T19:15:00Z",
"severity": "LOW"
},
"details": "Observable timing discrepancy in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.",
"id": "GHSA-7hm5-8cp5-vqp5",
"modified": "2022-05-24T19:04:29Z",
"published": "2022-05-24T19:04:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-24512"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-309571.pdf"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00022.html"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20210611-0005"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4934"
},
{
"type": "WEB",
"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00464.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-7JG5-65PC-52VM
Vulnerability from github – Published: 2023-10-30 18:30 – Updated: 2023-11-06 18:30
VLAI
Details
In ContentService, there is a possible way to read installed sync content providers due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-21306"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-10-30T17:15:48Z",
"severity": "MODERATE"
},
"details": "In ContentService, there is a possible way to read installed sync content providers due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-7jg5-65pc-52vm",
"modified": "2023-11-06T18:30:17Z",
"published": "2023-10-30T18:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-21306"
},
{
"type": "WEB",
"url": "https://source.android.com/docs/security/bulletin/android-14"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-7M6Q-GGF5-RWG4
Vulnerability from github – Published: 2026-07-01 00:34 – Updated: 2026-07-01 18:31
VLAI
Details
Side-channel information leakage in Paint in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
Severity
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-13922"
],
"database_specific": {
"cwe_ids": [
"CWE-1300",
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-30T23:17:06Z",
"severity": "MODERATE"
},
"details": "Side-channel information leakage in Paint in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)",
"id": "GHSA-7m6q-ggf5-rwg4",
"modified": "2026-07-01T18:31:32Z",
"published": "2026-07-01T00:34:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13922"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/511748106"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-7MMW-X6RM-HMR8
Vulnerability from github – Published: 2022-05-24 16:56 – Updated: 2024-04-04 01:58
VLAI
Details
RSA BSAFE Crypto-J versions prior to 6.2.5 are vulnerable to an Information Exposure Through Timing Discrepancy vulnerabilities during DSA key generation. A malicious remote attacker could potentially exploit those vulnerabilities to recover DSA keys.
Severity
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2019-3740"
],
"database_specific": {
"cwe_ids": [
"CWE-200",
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-09-18T23:15:00Z",
"severity": "MODERATE"
},
"details": "RSA BSAFE Crypto-J versions prior to 6.2.5 are vulnerable to an Information Exposure Through Timing Discrepancy vulnerabilities during DSA key generation. A malicious remote attacker could potentially exploit those vulnerabilities to recover DSA keys.",
"id": "GHSA-7mmw-x6rm-hmr8",
"modified": "2024-04-04T01:58:23Z",
"published": "2022-05-24T16:56:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-3740"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/security/en-us/details/DOC-106556/DSA-2019-094-RSA-BSAFE\u0026#174%3B-Crypto-J-Multiple-Security-Vulnerabilities"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/security/en-us/details/DOC-106556/DSA-2019-094-RSA-BSAFE\u0026#174;-Crypto-J-Multiple-Security-Vulnerabilities"
},
{
"type": "WEB",
"url": "https://www.oracle.com//security-alerts/cpujul2021.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpujul2020.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-7MVX-M8HQ-F37G
Vulnerability from github – Published: 2022-12-22 21:30 – Updated: 2025-04-16 15:34
VLAI
Details
While the text displayed in Autofill tooltips cannot be directly read by JavaScript, the text was rendered using page fonts. Side-channel attacks on the text by using specially crafted fonts could have lead to this text being inferred by the webpage. This vulnerability affects Firefox < 98.
Severity
4.3 (Medium)
{
"affected": [],
"aliases": [
"CVE-2022-26382"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-22T20:15:00Z",
"severity": "MODERATE"
},
"details": "While the text displayed in Autofill tooltips cannot be directly read by JavaScript, the text was rendered using page fonts. Side-channel attacks on the text by using specially crafted fonts could have lead to this text being inferred by the webpage. This vulnerability affects Firefox \u003c 98.",
"id": "GHSA-7mvx-m8hq-f37g",
"modified": "2025-04-16T15:34:07Z",
"published": "2022-12-22T21:30:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-26382"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1741888"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2022-10"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-7MXQ-H2R7-H449
Vulnerability from github – Published: 2025-08-19 15:31 – Updated: 2025-08-19 22:24
VLAI
Summary
Liferay Portal Email Modification Vulnerability via Calendar Portlet
Details
Liferay Portal 7.4.0 through 7.4.3.132, and Liferay DXP 2025.Q1.0 through 2025.Q1.6, 2024.Q4.0 through 2024.Q4.7, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.16 and 7.4 GA through update 92 allow any authenticated user to modify the content of emails sent through the calendar portlet, allowing an attacker to send phishing emails to any other user in the same organization.
Liferay Portal is fixed on the master branch from commit ff18e7d.
Severity
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "com.liferay:com.liferay.calendar.service"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.0.83"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-43739"
],
"database_specific": {
"cwe_ids": [
"CWE-203"
],
"github_reviewed": true,
"github_reviewed_at": "2025-08-19T22:24:01Z",
"nvd_published_at": "2025-08-19T14:15:38Z",
"severity": "MODERATE"
},
"details": "Liferay Portal 7.4.0 through 7.4.3.132, and Liferay DXP 2025.Q1.0 through 2025.Q1.6, 2024.Q4.0 through 2024.Q4.7, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.16 and 7.4 GA through update 92 allow any authenticated user to modify the content of emails sent through the calendar portlet, allowing an attacker to send phishing emails to any other user in the same organization.\n\nLiferay Portal is fixed on the master branch from commit ff18e7d.",
"id": "GHSA-7mxq-h2r7-h449",
"modified": "2025-08-19T22:24:01Z",
"published": "2025-08-19T15:31:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-43739"
},
{
"type": "WEB",
"url": "https://github.com/liferay/liferay-portal/commit/0a9f5df16ae0afa8216ca568b89b2cdf00054bde"
},
{
"type": "WEB",
"url": "https://github.com/liferay/liferay-portal/commit/5dc74a9f53f0aaa6cc1b6e0f503842832324239a"
},
{
"type": "WEB",
"url": "https://github.com/liferay/liferay-portal/commit/75be892f7cf31e1a38555d45627b0c2a06490d3d"
},
{
"type": "WEB",
"url": "https://github.com/liferay/liferay-portal/commit/7d70fab2259ff8b4a775021eb95bfc183823f8fc"
},
{
"type": "WEB",
"url": "https://github.com/liferay/liferay-portal/commit/7eb551616c6b8beeaf660ff7f29b09794cb80d91"
},
{
"type": "WEB",
"url": "https://github.com/liferay/liferay-portal/commit/a01a99cc4a5c7436f49790a1bfb386299172149c"
},
{
"type": "WEB",
"url": "https://github.com/liferay/liferay-portal/commit/b396c00338e754976a9f63ea1d5393f29babdabb"
},
{
"type": "WEB",
"url": "https://github.com/liferay/liferay-portal/commit/c1660f1a906c5ee3adca51e68f0abd6f9c1d253f"
},
{
"type": "WEB",
"url": "https://github.com/liferay/liferay-portal/commit/e50c1a0a53d30b4e55f47495e265c5b7ea3459e1"
},
{
"type": "WEB",
"url": "https://github.com/liferay/liferay-portal/commit/f238677d9afb46cfe4e23f05ce11bd5197a70388"
},
{
"type": "WEB",
"url": "https://github.com/liferay/liferay-portal/commit/ff18e7d363f2a3bc83e9d3446f1bc49bee821883"
},
{
"type": "WEB",
"url": "https://github.com/liferay/liferay-portal/commit/ff927f3f6784b396d3a611ac2e5e99b69ff0fd05"
},
{
"type": "PACKAGE",
"url": "https://github.com/liferay/liferay-portal"
},
{
"type": "WEB",
"url": "https://liferay.atlassian.net/browse/LPE-18210"
},
{
"type": "WEB",
"url": "https://liferay.dev/portal/security/known-vulnerabilities/-/asset_publisher/jekt/content/CVE-2025-43739"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Liferay Portal Email Modification Vulnerability via Calendar Portlet"
}
Mitigation MIT-46
Architecture and Design
Strategy: Separation of Privilege
- Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
- Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
Mitigation MIT-39
Implementation
- 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.
CAPEC-189: Black Box Reverse Engineering
An adversary discovers the structure, function, and composition of a type of computer software through black box analysis techniques. 'Black Box' methods involve interacting with the software indirectly, in the absence of direct access to the executable object. Such analysis typically involves interacting with the software at the boundaries of where the software interfaces with a larger execution environment, such as input-output vectors, libraries, or APIs. Black Box Reverse Engineering also refers to gathering physical side effects of a hardware device, such as electromagnetic radiation or sounds.