Description
efw4.X is an Enterprise Framework for Web. Prior to 4.08.010, the previewServlet serves files with their detected MIME type based on file extension, without any content sanitization or security headers. Files with .html, .htm, or .svg extensions are served as text/html or image/svg+xml respectively, causing any embedded JavaScript to execute in the victim's browser within the application's origin. This vulnerability is fixed in 4.08.010.
References (1)
Core 1
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/efwGrp/efw4.X/security/advisories/GHSA-hw67-p3gw-rrmj
Scores
CVSS v3
4.6
EPSS
0.0014
EPSS Percentile
3.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-80
Status
published
Products (1)
efwGrp/efw4.X
< 4.08.010
Published
May 12, 2026
Tracked Since
May 13, 2026