CVE-2021-25993

Name: CVE-2021-25993
Creator: NVD / NIST
Published: 2021-12-29T17:15:07.483+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.62%

Last modified Jun 17, 2026

CVE-2021-25993 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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.. EPSS estimates a 0.62% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.62%

45.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Requarks	Wiki.Js	>= 2.0.1, <= 2.5.255	—
Requarks	Wiki.Js	2.0.0	Beta147

References

https://github.com/Requarks/wiki/commit/5d3e81496fba1f0fbd64eeb855f30f69a9040718Patch, Third Party Advisory
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25993Exploit, Third Party Advisory
https://github.com/Requarks/wiki/commit/5d3e81496fba1f0fbd64eeb855f30f69a9040718Patch, Third Party Advisory
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25993Exploit, Third Party Advisory

Timeline

Published: Dec 29, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-25993?

How severe is CVE-2021-25993?

CVE-2021-25993 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25993?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-25993?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST