CVE-2016-11020 : Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg,

Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS and remote code execution.

Published 2020-02-25 19:15:11

Updated 2020-03-03 13:40:31

Source MITRE

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)Execute code

Products affected by CVE-2016-11020

Kunena » Kunena » For Joomla!
Versions before (<) 5.0.4
cpe:2.3:a:kunena:kunena:*:*:*:*:*:joomla\!:*:*
Matching versions

EPSS FAQ

3.39%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 86 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE-434 Unrestricted Upload of File with Dangerous Type

The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

Assigned by: nvd@nist.gov (Primary)

https://github.com/Kunena/Kunena-Forum/pull/5028

Improve avatar check by 810 · Pull Request #5028 · Kunena/Kunena-Forum · GitHub
Patch;Third Party Advisory
https://www.kunena.org/bugs/changelog

Changelog - Kunena - To Speak! Next Generation Forum Component for Joomla
Release Notes;Vendor Advisory
https://www.kunena.org/blog/179-kunena-5-0-4-released

Kunena 5.0.4 Released - Security Release - Kunena - To Speak! Next Generation Forum Component for Joomla
Release Notes;Vendor Advisory

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