CVE-2021-3312

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An XML external entity (XXE) vulnerability in Alkacon OpenCms 11.0, 11.0.1 and 11.0.2 allows remote authenticated users with edit privileges to exfiltrate files from the server's file system by uploading a crafted SVG document.

Una vulnerabilidad de tipo XML external entity (XXE) en Alkacon OpenCms versiones 11.0, 11.0.1 y 11.0.2, permite a usuarios remotos autenticados con privilegios de edición exfiltrar archivos del sistema de archivos del servidor al cargar un documento SVG diseñado

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-26 CVE Reserved
2021-10-08 CVE Published
2023-09-23 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-611: Improper Restriction of XML External Entity Reference

CAPEC

References (2)

URL	Tag	Source
https://github.com/alkacon/opencms-core/releases	Release Notes

URL	Date	SRC
https://github.com/alkacon/opencms-core/issues/725	2024-08-03

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Alkacon Search vendor "Alkacon"		Opencms Search vendor "Alkacon" for product "Opencms"				11.0 Search vendor "Alkacon" for product "Opencms" and version "11.0"		-		Affected
Alkacon Search vendor "Alkacon"		Opencms Search vendor "Alkacon" for product "Opencms"				11.0.1 Search vendor "Alkacon" for product "Opencms" and version "11.0.1"		-		Affected
Alkacon Search vendor "Alkacon"		Opencms Search vendor "Alkacon" for product "Opencms"				11.0.2 Search vendor "Alkacon" for product "Opencms" and version "11.0.2"		-		Affected