What’s Vulnerable › Vulnerabilities

CVE-2015-8684

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-01-18 · updated 2026-06-17
• Weakness: CWE-79

Description

Exponent CMS before 2.3.7 does not properly restrict the types of files that can be uploaded, which allows remote attackers to conduct cross-site scripting (XSS) attacks and possibly have other unspecified impact as demonstrated by uploading a file with an .html extension, then accessing it via the elFinder functionality.

Affected products

• Exponent CMS: through 2.3.5

References

• https://exponentcms.lighthouseapp.com/projects/61783/tickets/1323-exponent-cms-235-file-upload-cross-site-scripting-vulnerability
• https://packetstormsecurity.com/files/136762/Exponent-CMS-2.3.5-File-Upload-Cross-Site-Scripting.html
• https://exponentcms.lighthouseapp.com/projects/61783/tickets/1323-exponent-cms-235-file-upload-cross-site-scripting-vulnerability
• https://packetstormsecurity.com/files/136762/Exponent-CMS-2.3.5-File-Upload-Cross-Site-Scripting.html

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