CVE-2018-19296

Ubuntu Security Notice USN-5956-2

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

PHPMailer before 5.2.27 and 6.x before 6.0.6 is vulnerable to an object injection attack.

PHPMailer en versiones anteriores a la 5.2.27 y versiones 6.x anteriores a la 6.0.6 es vulnerable a un ataque de inyección de objetos.

Dawid Golunski discovered that PHPMailer was not properly escaping user input data used as arguments to functions executed by the system shell. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 ESM. It was discovered that PHPMailer was not properly escaping characters in certain fields of the code_generator.php example code. An attacker could possibly use this issue to conduct cross-site scripting attacks. This issue was only fixed in Ubuntu 16.04 ESM and Ubuntu 18.04 ESM.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-11-15 CVE Reserved
2018-11-16 CVE Published
2024-08-05 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-502: Deserialization of Untrusted Data
CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

CAPEC

References (6)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2018/12/msg00020.html	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.27	2023-11-07
https://github.com/PHPMailer/PHPMailer/releases/tag/v6.0.6	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT	2023-11-07
https://www.debian.org/security/2018/dsa-4351	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Phpmailer Project Search vendor "Phpmailer Project"		Phpmailer Search vendor "Phpmailer Project" for product "Phpmailer"				< 5.2.27 Search vendor "Phpmailer Project" for product "Phpmailer" and version " < 5.2.27"		-		Affected
Phpmailer Project Search vendor "Phpmailer Project"		Phpmailer Search vendor "Phpmailer Project" for product "Phpmailer"				>= 6.0.0 < 6.0.6 Search vendor "Phpmailer Project" for product "Phpmailer" and version " >= 6.0.0 < 6.0.6"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				33 Search vendor "Fedoraproject" for product "Fedora" and version "33"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				34 Search vendor "Fedoraproject" for product "Fedora" and version "34"		-		Affected
Wordpress Search vendor "Wordpress"		Wordpress Search vendor "Wordpress" for product "Wordpress"				>= 3.7 <= 5.7 Search vendor "Wordpress" for product "Wordpress" and version " >= 3.7 <= 5.7"		-		Affected