PT-2022-11917 · Xwiki · Xwiki

Pierrick Vuillemin · Published 2022-02-04 · Updated 2022-02-10 · CVE-2021-43841

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions XWiki (affected versions not specified)

Description The issue allows an attacker to upload an SVG file containing a script that is executed when the download action is performed on the file, due to the default XWiki configuration. This can be exploited when using the default configuration.

Recommendations Update the configuration to prevent displaying SVG files in the browser. As a temporary workaround, consider setting the configuration to download or display files properly to mitigate the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-43841

GHSA-9JQ9-C2CV-PCRJ

Affected Products

Xwiki

References · 8

• 🔥 https://jira.xwiki.org/browse/XWIKI-18368 · Exploit
• https://github.com/xwiki/xwiki-platform/commit/5853d492b3a274db0d94d560e2a5ea988a271c62 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-43841 · Security Note
• https://xwiki.org/xwiki/bin/view/Documentation/AdminGuide/Attachments#HAttachmentdisplayordownload · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-43841 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-9jq9-c2cv-pcrj · Vendor Advisory
• https://github.com/xwiki/xwiki-platform · Note
• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-9jq9-c2cv-pcrj · Note