Vulnerability · Published Dec 29, 2021 · Assigned by Mend

CVE-2021-25993Requarks wiki.js - Stored Cross-Site Scripting (XSS) in markdown editor

Medium 5.4

In plain English

A medium-severity cross-site scripting in wiki from Requarks. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.6%top 49.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

In Requarks wiki.js, versions 2.0.0-beta.147 to 2.5.255 are affected by Stored XSS vulnerability, where a low privileged (editor) user can upload a SVG file that contains malicious JavaScript while uploading assets in the page. That will send the JWT tokens to the attacker’s server and will lead to account takeover when accessed by the victim.

Affected products (as reported)

VendorProductVersions
Requarks wiki 2.0.0-beta.147 – before unspecifiedunspecified – through 2.5.255

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References