CVE-2021-26030

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

An issue was discovered in Joomla! 3.0.0 through 3.9.25. Inadequate escaping allowed XSS attacks using the logo parameter of the default templates on error page

References

https://developer.joomla.org/security-centre/850-20210401-core-escape-xss-in-logo-parameter-error-pages.html

Details

Source: MITRE

Published: 2021-04-14

Updated: 2021-04-22

Type: CWE-79

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 6.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Impact Score: 2.7

Exploitability Score: 2.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:* versions from 3.0.0 to 3.9.25 (inclusive)

Tenable Plugins

View all (2 total)

IDNameProductFamilySeverity
148641Joomla 3.0.x < 3.9.26 Multiple Vulnerabilities (5835-joomla-3-9-26)NessusCGI abuses
medium
112743Joomla! 3.x < 3.9.26 Multiple VulnerabilitiesWeb Application ScanningComponent Vulnerability
medium