CVE-2015-8684
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…
Does this matter?
Lower severity and a low EPSS score (1.23%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.23% probability · 69th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- exponentcms/exponent cms
- Source
- cve@mitre.org
EPSS 1.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://exponentcms.lighthouseapp.com/projects/61783/tickets/1323-exponent-cms-235-file-upload-cross-site-scripting-vulnerabilityVendor Advisory
- https://packetstormsecurity.com/files/136762/Exponent-CMS-2.3.5-File-Upload-Cross-Site-Scripting.htmlThird Party Advisory, VDB Entry
- https://exponentcms.lighthouseapp.com/projects/61783/tickets/1323-exponent-cms-235-file-upload-cross-site-scripting-vulnerabilityVendor Advisory
- https://packetstormsecurity.com/files/136762/Exponent-CMS-2.3.5-File-Upload-Cross-Site-Scripting.htmlThird Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.