Medium severity · published Feb 4, 2022
CVE-2021-43841
XWiki is a generic wiki platform offering runtime services for applications built on top of it
5.4
CVSS
0.9%
EPSS
No
On KEV
Description
XWiki is a generic wiki platform offering runtime services for applications built on top of it. When using default XWiki configuration, it's possible for an attacker to upload an SVG containing a script executed when executing the download action on the file. This problem has been patched so that the default configuration doesn't allow to display the SVG files in the browser. Users are advised to update or to disallow uploads of SVG files.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XW
Xwiki · Xwiki
1.0 before 12.10.6; 13.0 through 13.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-43841
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-43841
Patch
https://github.com/xwiki/xwiki-platform/commit/5853d492b3a274db0d94d560e2a5ea988a271c62
Third Party Advisory
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-9jq9-c2cv-pcrj
Exploit
https://jira.xwiki.org/browse/XWIKI-18368
Vendor Advisory
https://www.xwiki.org/xwiki/bin/view/Documentation/AdminGuide/Attachments#HAttachmentdisplayordownload
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