XSS in Requarks Wiki.js
CVE-2020-4052
In Wiki.js before 2.4.107, there is a stored cross-site scripting through template injection. This vulnerability exists due to an insecure validation mechanism intended to insert v-pre tags into rendered HTML elements which contain curly-braces. By creating a crafted wiki page, a malicious Wiki.js user may stage a stored cross-site scripting attack. This allows the attacker to execute malicious JavaScript when the page is viewed by other users. This has been patched in 2.4.107.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.008 (56.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Requarks Wiki.js
- Requarks.io Wiki.js — versions < 2.4.107
Weakness classification (CWE)
References
- github.com/Requarks/wiki/security/advisories/GHSA-9jgg-4xj2-vjjj (Third Party Advisory)
- github.com/Requarks/wiki/commit/9e08718ee904046f8b2294ef6ac79e8a75a451e3 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-4052?
- CVE-2020-4052 is a medium-severity vulnerability in Requarks Wiki.js, classified under Cross-site Scripting. CVSS score: 6.3/10. Published 2020-06-16.
- How severe is CVE-2020-4052?
- Medium severity. CVSS v3 base score is 6.3 out of 10.