CVE-2020-4052

MediumCVSS 6.1/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
Requarks.io	Wiki.js	< 2.4.107

References

https://github.com/Requarks/wiki/commit/9e08718ee904046f8b2294ef6ac79e8a75a451e3Patch, Third Party Advisory
https://github.com/Requarks/wiki/security/advisories/GHSA-9jgg-4xj2-vjjjThird Party Advisory
https://github.com/Requarks/wiki/commit/9e08718ee904046f8b2294ef6ac79e8a75a451e3Patch, Third Party Advisory
https://github.com/Requarks/wiki/security/advisories/GHSA-9jgg-4xj2-vjjjThird Party Advisory

Timeline

Published: Jun 16, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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