Weakness (CWE)
CWE-319: Cleartext Transmission of Sensitive Information
The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.
How to prevent it (5 mitigations)
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Architecture and Design
Before transmitting, encrypt the data using reliable, confidentiality-protecting cryptographic protocols.
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Implementation
When using web applications with SSL, use SSL for the entire session from login to logout, not just for the initial login page.
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Implementation
When designing hardware platforms, ensure that approved encryption algorithms (such as those recommended by NIST) protect paths from security critical data to trusted user applications.
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Testing
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.
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Operation
Configure servers to use encrypted channels for communication, which may include SSL or other secure protocols.
Source: MITRE CWE-319
280 results · Clear filters · Feed
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Medium 6.5
This issue was addressed by using HTTPS when sending information over the network. This issue is fixed in iOS 18.7.10 a…
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Medium 4.3
Sensitive Data Exposure
Zohocorp ManageEngine Endpoint Central versions before 11.4.2528.34 are affected by cleartext transmission of sensitive information vulnerability.
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Medium 6.5
@hapi/wreck: Sensitive credential headers leak across cross-port and cross-scheme redirects
@hapi/wreck is an HTTP client utility. Prior to 18.1.2, Wreck strips credential headers including Authorization, Cookie, and Proxy-Authorization before following a cross-origin redirect, but the origin check compares hostnames only and ignores scheme and port…
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Medium 5.5
Windows Ancillary Function Driver for WinSock Information Disclosure Vulnerability
Cleartext transmission of sensitive information in Windows Ancillary Function Driver for WinSock allows an authorized attacker to disclose information locally.
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Medium 4.8
Fiber: HSTS header never set in helmet middleware due to incorrect protocol check
Fiber is an Express inspired web framework written in Go. Prior to 3.4.0, the helmet middleware in middleware/helmet/helmet.go never sets the Strict-Transport-Security response header even when HSTSMaxAge is configured because it checks c.Protocol() for https…
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Medium 5.9
Vulnerabilities found in Watson Data Intelligence
IBM watsonx.data intelligence 5.2.2, 5.3.0, 5.3.1, 5.3.1 through Patch 1 transmits data in clear text that could allow an attacker to obtain sensitive information using man in the middle techniques.
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Medium 5.9
Cleartext Transmission of Sensitive Information in Watson Data Intelligence
IBM watsonx.data intelligence 5.2.0, 5.2.1, 5.2.2, 5.3.0 transmits data in clear text that could allow an attacker to obtain sensitive information using man in the middle techniques.
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Medium 5.9
Guzzle: Silent HTTPS-Proxy Downgrade to Cleartext
Guzzle is an extensible PHP HTTP client. Prior to 7.12.1, in certain configurations, traffic expected to be protected by TLS on the hop to the proxy is transmitted in cleartext. Proxy authentication credentials (the Proxy-Authorization header, proxy userinfo …
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Medium 6.5
Apollo Pharmacy Blood Glucose Monitoring System APG-01 BT Cleartext Transmission of Sensitive Information
An attacker within BLE communication range can passively intercept wireless traffic and obtain sensitive health-related information, including glucose measurement values.
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Medium 6.5
Client side encryption fails to encrypt values in a $vectorSearch
A bug in query analysis processing of the $vectorSearch aggregation stage for Queryable Encryption (QE) or Client-Side Field Level Encryption (CSFLE) results in literal values for encrypted fields within the $vectorSearch stage filter expressions to be sent t…
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Medium 5.9
A cleartext transmission of sensitive information vulnerability in Synology Note Station Client before 2.2.4-703 allows…
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Medium 5.9
Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 transmits DDNS credentials over plaintext HTTP with only Base6…
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Medium 5.9
HTTPS Fallback to HTTP in Graph Explorer
Proxy server in Graph Explorer before 3.0.1 falls back to HTTP when certificate files are missing, which might allow remote threat actors to obtain sensitive information via interception of requests intended to be sent over HTTPS. To remediate this issue, use…
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Medium 5.9
CodexBar < 0.32.0 Session Cookie Exposure via HTTP Redirect
CodexBar prior to 0.32.0 contains a session cookie leakage vulnerability that allows network attackers to intercept imported browser session cookies by exploiting improper redirect handling for Amp and Ollama provider sessions. Attackers can position themselv…
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Medium 6.3
Missing authentication and clear‑text data transmission affecting Orca heat pumps
Missing authentication and clear‑text transmission of data from the heat pumps to the control server, combined with the absence of input validation on aggregated data, can lead to stored XSS that enables theft of cookies from the pump’s web control interface.…
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Medium 4.9
Cleartext transmission of sensitive information vulnerability in Export Key functionality in Synology Surveillance Stat…
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Medium 4.3
HCL AION is affected by a vulnerability where backend service details may be transmitted over insecure HTTP channels.
HCL AION is affected by a vulnerability where backend service details may be transmitted over insecure HTTP channels. This may expose sensitive information to potential interception or unauthorized access during transmission under certain conditions
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Medium 5.4
HCL AION is affected by a vulnerability where encryption is not enforced for certain data transmissions or operations
HCL AION is affected by a vulnerability where encryption is not enforced for certain data transmissions or operations. This may expose sensitive information to potential interception or unauthorized access under specific conditions.
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Medium 5.3
Foscam VD1 Video Doorbell before V5.3.13_1072 is vulnerable to Cleartext Transmission of Sensitive Information. The dev…
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Medium 4.8
Android App "あんしんフィルター for au" provided by KDDI CORPORATION contains Cleartext Transmission of Sensitive Information (C…
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Medium 5.9
connection reuse ignores TLS requirement
A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text (via IMAP, SMTP, or POP3), a subsequent request to that same host bypasse…
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Medium 5.3
Plack::Middleware::Statsd versions before 0.9.0 for Perl may leak user IP addresses
Plack::Middleware::Statsd versions before 0.9.0 for Perl may leak user IP addresses. If the communication channel to the statsd daemon is not secured (for example, by sending UDP packets to a host on another network), then users' IP addresses may be leaked. S…
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Medium 5.3
Some EZVIZ products utilize older versions of cloud feature modules with legacy API interfaces, which pose a data trans…
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Medium 5.3
SenseLive X3050 Cleartext transmission of sensitive information
A vulnerability exists in SenseLive X3050’s web management interface due to its reliance on unencrypted HTTP for all administrative communication. Because management traffic, including authentication attempts and configuration data, is transmitted in cleartex…
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Medium 5.3
HCL BigFix Service Management (SM) Discovery is vulnerable to unenforced encryption
HCL BigFix Service Management (SM) Discovery is vulnerable to unenforced encryption due to port 80 (HTTP) being open, allowing unencrypted access. An attacker with access to the network traffic can sniff packets from the connection and uncover the data.
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Medium 5.7
OpenClaw < 2026.4.2 - Cleartext Credential Transmission via Unencrypted WebSocket Gateway Endpoints
OpenClaw before 2026.4.2 accepts non-loopback cleartext ws:// gateway endpoints and transmits stored gateway credentials over unencrypted connections. Attackers can forge discovery results or craft setup codes to redirect clients to malicious endpoints, discl…
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Medium 6.5
Anviz Products Cleartext Transmission of Sensitive Information
Anviz CX2 Lite and CX7 administrative sessions occur over HTTP, enabling on‑path attackers to sniff credentials and session data, which can be used to compromise the device.
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Medium 4.8
Cryptomator Hub OAuth token exchange HTTP downgrade via getAuthority() scheme confusion (CVE-2026-32303 bypass)
Cryptomator is an open-source client-side encryption application for cloud storage. Version 1.19.1 contains a logic flaw in CheckHostTrustController.getAuthority() that allows an attacker to bypass the security fix for CVE-2026-32303. The method hardcodes the…
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Medium 5.4
A cleartext transmission of sensitive information vulnerability in Fortinet FortiSOAR PaaS 7.6.0 through 7.6.3, FortiSO…
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Medium 6.2
A cleartext transmission of sensitive information vulnerability in Fortinet FortiSOAR PaaS 7.6.0 through 7.6.3, FortiSO…
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Medium 5.3
Apache APISIX: Plugin tencent-cloud-cls log export uses plaintext HTTP
Cleartext Transmission of Sensitive Information vulnerability in Apache APISIX. tencent-cloud-cls log export uses plaintext HTTP This issue affects Apache APISIX: from 2.99.0 through 3.15.0. Users are recommended to upgrade to version 3.16.0, which fixes the …
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Medium 5.9
Libsoup: libsoup: information disclosure via cleartext transmission of cookies during https tunnel establishment
A flaw was found in libsoup. When establishing HTTPS tunnels through a configured HTTP proxy, sensitive session cookies are transmitted in cleartext within the initial HTTP CONNECT request. A network-positioned attacker or a malicious HTTP proxy can intercept…
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Medium 6.5
IBM InfoSphere Information Server is vulnerable due to disclosure of sensitive information
IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 is vulnerable to exposure of sensitive information via JSON server response manipulation.
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Medium 5.9
Multiple Vulnerabilities in IBM Concert Software
IBM Concert 1.0.0 through 2.2.0 transmits data in clear text that could allow an attacker to obtain sensitive information using man in the middle techniques.
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Medium 6.1
A vulnerability in Cisco IOS XE Software for Cisco Meraki could allow a remote, unauthenticated attacker to view confid…
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Medium 5.9
IBM App Connect Enterprise Certified Container IntegrationServer and IntegrationRuntime operands that report metrics are vulnerable to loss of confidentiality
IBM App Connect Operator versions CD 11.3.0 through 11.6.0 and 12.1.0 through 12.20.0, LTS versions 12.0.0 through 12.0.20, and IBM App Connect Enterprise Certified Containers Operands versions CD 12.0.11.2‑r1 through 12.0.12.5‑r1 and 13.0.1.0‑r1 through 13.0…
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Medium 5.6
Cleartext Transmission of Sensitive Information (CWE-319) in a component used in the Gallagher Hanwha VMS and Gallagher…
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Medium 6.5
In multiple functions of btm_ble_sec.cc, there is a possible unencrypted communication due to Invalid error handling. T…
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Medium 5.9
SODOLA SL902-SWTGW124AS <= 200.1.20 Cleartext Credential Transmission
SODOLA SL902-SWTGW124AS firmware versions through 200.1.20 transmit authentication credentials over unencrypted HTTP, allowing attackers to capture credentials. An attacker positioned to observe network traffic between a user and the device can intercept cred…
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Medium 5.9
Multiple vulnerabilities in IBM Java SDK affecting Db2 Recovery Expert for Linux, Unix and Windows
IBM DB2 Recovery Expert for LUW 5.5 Interim Fix 002 IBM Db2 Recovery Expert for Linux, UNIX and Windows transmits data in a cleartext communication channel that could allow an attacker to obtain sensitive information using man in the middle techniques.