FactorJS - Insufficient Session Expiration Leads to a Local Account Takeover
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-613.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
FactorJS Factor unspecified
4 records Highest priority Priority HIGH 1 HIGH, 3 MEDIUM
Other records, highest priority first
- TI-2021-07990 FactorJS - Stored Cross-Site Scripting (XSS) in Post Reply FunctionalityPriority MEDIUM 60
- TI-2021-07989 FactorJS - Reflected Cross-Site Scripting (XSS) in Tags and Categories FunctionalityPriority MEDIUM 60
- TI-2021-07988 FactorJS - Reflected Cross-Site Scripting (XSS) in Search FunctionalityPriority MEDIUM 60
Timeline
- 2026-10-02 Threatist record created from CVE-2021-25985
- 2026-10-03 Alias added: GHSA-j232-863r-9977
References
More FactorJS Factor vulnerabilities
- TI-2021-07990 FactorJS - Stored Cross-Site Scripting (XSS) in Post Reply Functionality CVSS 3.1MEDIUM 6.1
- TI-2021-07989 FactorJS - Reflected Cross-Site Scripting (XSS) in Tags and Categories Functionality CVSS 3.1MEDIUM 6.1
- TI-2021-07988 FactorJS - Reflected Cross-Site Scripting (XSS) in Search Functionality CVSS 3.1MEDIUM 6.1
Sources
- CVE-2021-25985 · CVE Program
- CVE-2021-25985 · NVD
- FIRST EPSS
- GHSA-j232-863r-9977 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences