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CVE-2021-25985

30
FAUCET Score

CVE-2021-25985 is a critical vulnerability affecting Factor (App Framework & Headless CMS) versions 1.0.4 to 1.8.30. The flaw allows for improper session invalidation upon logout and stores sessions in local storage without expiration, making them susceptible to theft. With a CVSS score of 9.8 (CRITICAL), this vulnerability poses a high risk of local account takeover via techniques like XSS attacks, leading to complete compromise of confidentiality, integrity, and availability. Currently, there is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.0.4, <= 1.8.30CPE matchmatch criteria
cpe:2.3:a:darwin:factor:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.76%
Probability of exploitation in next 30 days
EPSS Percentile
51.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0076 is in the 35th percentile among its peer group of 36,821 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / FactorJS/factor/blob/v1.8.30/%40factor/user/util.ts
whitesourcesoftware.com / vulnerability-database/CVE-2021-25985
Third Party Advisory