The MediaElement.js WordPress plugin through 4.2.8 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high-privilege users such as admins.
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mediaelement.js
Vendor: mediaelementjs
Actively Exploited
0
CISA KEV List
PoC / Exploits
0
Code Available
Total RCEs
0
Remote Access
Total CVEs
5
Total Indexed
Avg. EPSS
1.67%
Exploit Prob.
Security Vulnerability Index
Page 1 / 1
5.4
CVSS
Severity: MEDIUM
6.1
CVSS
Cross-site scripting (XSS) vulnerability in flash/FlashMediaElement.as in MediaElement.js before 2.21.0, as used in WordPress before 4.5.2, allows remote attackers to inject arbitrary web script or HTML via an obfuscated form of the jsinitfunction parameter, as demonstrated by "jsinitfunctio%gn."
Severity: MEDIUM
4.3
CVSS
Cross-site scripting (XSS) vulnerability in flashmediaelement.swf in MediaElement.js before 2.11.2, as used in ownCloud Server 5.0.x before 5.0.5 and 4.5.x before 4.5.10, allows remote attackers to inject arbitrary web script or HTML via the file parameter.
Severity: MEDIUM