CVE-2021-25985

Name: CVE-2021-25985
Creator: NVD / NIST
Published: 2021-11-16T10:15:07.167+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.76%

Last modified Jun 17, 2026

CVE-2021-25985 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In Factor (App Framework & Headless CMS) v1.0.4 to v1.8.30, improperly invalidate a user’s session even after the user logs out of the application. In addition, user sessions are stored in the browser’s local storage, which by default does not have an expiration time. EPSS estimates a 0.76% chance of exploitation in the next 30 days.

Description

In Factor (App Framework & Headless CMS) v1.0.4 to v1.8.30, improperly invalidate a user’s session even after the user logs out of the application. In addition, user sessions are stored in the browser’s local storage, which by default does not have an expiration time. This makes it possible for an attacker to steal and reuse the cookies using techniques such as XSS attacks, followed by a local account takeover.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.76%

50.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Darwin	Factor	>= 1.0.4, <= 1.8.30

References

Timeline

Published: Nov 16, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-25985?

How severe is CVE-2021-25985?

CVE-2021-25985 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25985?

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-2021-25985?

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

Scan your code now

Source: NVD / NIST