CWE-93
Improper Neutralization of CRLF Sequences ('CRLF Injection')
The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.
CVE-2022-50682 (GCVE-0-2022-50682)
Vulnerability from cvelistv5
Published
2025-12-18 19:53
Modified
2025-12-18 21:47
Severity ?
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Summary
A CRLF injection vulnerability in Kentico Xperience allows attackers to manipulate URL query string redirects via improper encoding in the routing engine. This could enable header injection and potentially facilitate further web application attacks.
References
| URL | Tags | |||||||
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CVE-2023-49082 (GCVE-0-2023-49082)
Vulnerability from cvelistv5
Published
2023-11-29 20:07
Modified
2025-11-04 18:19
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Improper validation makes it possible for an attacker to modify the HTTP request (e.g. insert a new header) or even create a new HTTP request if the attacker controls the HTTP method. The vulnerability occurs only if the attacker can control the HTTP method (GET, POST etc.) of the request. If the attacker can control the HTTP version of the request it will be able to modify the request (request smuggling). This issue has been patched in version 3.9.0.
References
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CVE-2024-7472 (GCVE-0-2024-7472)
Vulnerability from cvelistv5
Published
2024-10-29 12:49
Modified
2025-10-15 12:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences
Summary
lunary-ai/lunary v1.2.26 contains an email injection vulnerability in the Send email verification API (/v1/users/send-verification) and Sign up API (/auth/signup). An unauthenticated attacker can inject data into outgoing emails by bypassing the extractFirstName function using a different whitespace character (e.g., \xa0). This vulnerability can be exploited to conduct phishing attacks, damage the application's brand, cause legal and compliance issues, and result in financial impact due to unauthorized email usage.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| lunary-ai | lunary-ai/lunary |
Version: unspecified < 1.4.10 |
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CVE-2025-0293 (GCVE-0-2025-0293)
Vulnerability from cvelistv5
Published
2025-07-08 15:33
Modified
2025-07-08 16:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Summary
CLRF injection in Ivanti Connect Secure before version 22.7R2.8 and Ivanti Policy Secure before version 22.7R1.5 allows a remote authenticated attacker with admin rights to write to a protected configuration file on disk.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Ivanti | Connect Secure |
Patch: 22.7R2.8 |
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CVE-2025-14531 (GCVE-0-2025-14531)
Vulnerability from cvelistv5
Published
2025-12-11 18:32
Modified
2025-12-11 18:55
Severity ?
2.1 (Low) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RC:R
4.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RC:R
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RC:R
4.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RC:R
VLAI Severity ?
EPSS score ?
Summary
A vulnerability was found in code-projects Rental Management System 2.0. This affects an unknown function of the file Transaction.java of the component Log Handler. Performing manipulation results in crlf injection. The attack can be initiated remotely. The exploit has been made public and could be used.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| code-projects | Rental Management System |
Version: 2.0 |
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CVE-2025-25184 (GCVE-0-2025-25184)
Vulnerability from cvelistv5
Published
2025-02-12 16:20
Modified
2025-11-03 21:12
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Rack provides an interface for developing web applications in Ruby. Prior to versions 2.2.11, 3.0.12, and 3.1.10, Rack::CommonLogger can be exploited by crafting input that includes newline characters to manipulate log entries. The supplied proof-of-concept demonstrates injecting malicious content into logs. When a user provides the authorization credentials via Rack::Auth::Basic, if success, the username will be put in env['REMOTE_USER'] and later be used by Rack::CommonLogger for logging purposes. The issue occurs when a server intentionally or unintentionally allows a user creation with the username contain CRLF and white space characters, or the server just want to log every login attempts. If an attacker enters a username with CRLF character, the logger will log the malicious username with CRLF characters into the logfile. Attackers can break log formats or insert fraudulent entries, potentially obscuring real activity or injecting malicious data into log files. Versions 2.2.11, 3.0.12, and 3.1.10 contain a fix.
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
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CVE-2025-27111 (GCVE-0-2025-27111)
Vulnerability from cvelistv5
Published
2025-03-04 15:26
Modified
2025-11-03 21:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Rack is a modular Ruby web server interface. The Rack::Sendfile middleware logs unsanitised header values from the X-Sendfile-Type header. An attacker can exploit this by injecting escape sequences (such as newline characters) into the header, resulting in log injection. This vulnerability is fixed in 2.2.12, 3.0.13, and 3.1.11.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
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CVE-2025-41376 (GCVE-0-2025-41376)
Vulnerability from cvelistv5
Published
2025-08-01 12:29
Modified
2025-09-11 08:56
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
CRLF Injection vulnerability in Limesurvey v2.65.1+170522. This vulnerability could allow a remote attacker to inject arbitrary HTTP headers and perform HTTP response splitting attacks via '/index.php/survey/index/sid/<SID>/token/fwyfw%0d%0aCookie:%20POC'.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| LimeSurvey | LimeSurvey |
Version: 3.0 |
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CVE-2025-54972 (GCVE-0-2025-54972)
Vulnerability from cvelistv5
Published
2025-11-18 17:01
Modified
2025-11-19 14:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-93 - Information disclosure
Summary
An improper neutralization of crlf sequences ('crlf injection') in Fortinet FortiMail 7.6.0 through 7.6.3, FortiMail 7.4.0 through 7.4.5, FortiMail 7.2 all versions, FortiMail 7.0 all versions may allow an attacker to inject headers in the response via convincing a user to click on a specifically crafted link
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Fortinet | FortiMail |
Version: 7.6.0 ≤ 7.6.3 Version: 7.4.0 ≤ 7.4.5 Version: 7.2.0 ≤ 7.2.8 Version: 7.0.0 ≤ 7.0.9 cpe:2.3:a:fortinet:fortimail:7.6.3:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.6.2:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.6.1:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.6.0:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.4.5:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.4.4:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.4.3:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.4.2:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.4.1:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.4.0:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.2.8:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.2.7:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.2.6:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.2.5:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.2.4:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.2.3:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.2.2:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.2.1:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.2.0:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.0.9:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.0.8:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.0.7:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.0.6:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.0.5:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.0.4:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.0.3:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.0.2:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.0.1:*:*:*:*:*:*:* cpe:2.3:a:fortinet:fortimail:7.0.0:*:*:*:*:*:*:* |
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CVE-2025-57804 (GCVE-0-2025-57804)
Vulnerability from cvelistv5
Published
2025-08-25 21:04
Modified
2025-11-03 18:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Summary
h2 is a pure-Python implementation of a HTTP/2 protocol stack. Prior to version 4.3.0, an HTTP/2 request splitting vulnerability allows attackers to perform request smuggling attacks by injecting CRLF characters into headers. This occurs when servers downgrade HTTP/2 requests to HTTP/1.1 without properly validating header names/values, enabling attackers to manipulate request boundaries and bypass security controls. This issue has been patched in version 4.3.0.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| python-hyper | h2 |
Version: < 4.3.0 |
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Mitigation
Phase: Implementation
Description:
- Avoid using CRLF as a special sequence.
Mitigation
Phase: Implementation
Description:
- Appropriately filter or quote CRLF sequences in user-controlled input.
CAPEC-15: Command Delimiters
An attack of this type exploits a programs' vulnerabilities that allows an attacker's commands to be concatenated onto a legitimate command with the intent of targeting other resources such as the file system or database. The system that uses a filter or denylist input validation, as opposed to allowlist validation is vulnerable to an attacker who predicts delimiters (or combinations of delimiters) not present in the filter or denylist. As with other injection attacks, the attacker uses the command delimiter payload as an entry point to tunnel through the application and activate additional attacks through SQL queries, shell commands, network scanning, and so on.
CAPEC-81: Web Server Logs Tampering
Web Logs Tampering attacks involve an attacker injecting, deleting or otherwise tampering with the contents of web logs typically for the purposes of masking other malicious behavior. Additionally, writing malicious data to log files may target jobs, filters, reports, and other agents that process the logs in an asynchronous attack pattern. This pattern of attack is similar to "Log Injection-Tampering-Forging" except that in this case, the attack is targeting the logs of the web server and not the application.