// For flags

CVE-2024-5458

Filter bypass in filter_var (FILTER_VALIDATE_URL)

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, due to a code logic error, filtering functions such as filter_var when validating URLs (FILTER_VALIDATE_URL) for certain types of URLs the function will result in invalid user information (username + password part of URLs) being treated as valid user information. This may lead to the downstream code accepting invalid URLs as valid and parsing them incorrectly.

En las versiones de PHP 8.1.* anteriores a 8.1.29, 8.2.* anteriores a 8.2.20, 8.3.* anteriores a 8.3.8, debido a un error de lógica de código, funciones de filtrado como filter_var al validar URL (FILTER_VALIDATE_URL) para ciertos tipos de URL la función dará como resultado que la información de usuario no válida (nombre de usuario + contraseña parte de las URL) se trate como información de usuario válida. Esto puede hacer que el código posterior acepte URL no válidas como válidas y las analice incorrectamente.

In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, due to a code logic error, filtering functions such as filter_var when validating URLs (FILTER_VALIDATE_URL) for certain types of URLs the function will result in invalid user information (username + password part of URLs) being treated as valid user information. This may lead to the downstream code accepting invalid URLs as valid and parsing them incorrectly.

USN-6841-1 fixed a vulnerability in PHP. This update provides the corresponding updates for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. It was discovered that PHP could early return in the filter_var function resulting in invalid user information being treated as valid user information. An attacker could possibly use this issue to expose raw user input information.

*Credits: c01l
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-05-29 CVE Reserved
  • 2024-06-09 CVE Published
  • 2025-03-14 CVE Updated
  • 2025-03-14 First Exploit
  • 2025-04-03 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-20: Improper Input Validation
  • CWE-345: Insufficient Verification of Data Authenticity
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Php
Search vendor "Php"
Php
Search vendor "Php" for product "Php"
>= 7.3.27 <= 7.3.33
Search vendor "Php" for product "Php" and version " >= 7.3.27 <= 7.3.33"
-
Affected
Php
Search vendor "Php"
Php
Search vendor "Php" for product "Php"
>= 7.4.15 <= 7.4.33
Search vendor "Php" for product "Php" and version " >= 7.4.15 <= 7.4.33"
-
Affected
Php
Search vendor "Php"
Php
Search vendor "Php" for product "Php"
>= 8.0.2 <= 8.0.30
Search vendor "Php" for product "Php" and version " >= 8.0.2 <= 8.0.30"
-
Affected
Php
Search vendor "Php"
Php
Search vendor "Php" for product "Php"
>= 8.1.0 < 8.1.29
Search vendor "Php" for product "Php" and version " >= 8.1.0 < 8.1.29"
-
Affected
Php
Search vendor "Php"
Php
Search vendor "Php" for product "Php"
>= 8.2.0 < 8.2.20
Search vendor "Php" for product "Php" and version " >= 8.2.0 < 8.2.20"
-
Affected
Php
Search vendor "Php"
Php
Search vendor "Php" for product "Php"
>= 8.3.0 < 8.3.8
Search vendor "Php" for product "Php" and version " >= 8.3.0 < 8.3.8"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
Fedora
Search vendor "Fedoraproject" for product "Fedora"
40
Search vendor "Fedoraproject" for product "Fedora" and version "40"
-
Affected