Unrestricted Upload of Files in edu-sharing
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.4epss 0.8%
exploitation probability
0.8%top 44% of all CVEs
observed exploitation
nono source reports it
An authenticated user can upload arbitrary files in the upload
function for collection preview images. An attacker may upload an HTML
file that includes malicious JavaScript code which will be executed if a
user visits the direct URL of the collection preview image (Stored
Cross Site Scripting). It is also possible to upload SVG files that
include nested XML entities. Those are parsed when a user visits the
direct URL of the collection preview image, which may be utilized for a
Denial of Service attack.
This issue affects edu-sharing: <8.0.8-RC2, <8.1.4-RC0, <9.0.0-RC19.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H
Affected products
metaVentis GmbH · edu-sharing