Home/CVE/In Factor (App Framework & Headless CMS) forum plugin, versions v1.3.8 to v1.8.30, are vulnerable to reflected Cross-Sit
CVE

CVE-2021-25983

In Factor (App Framework & Headless CMS) forum plugin, versions v1.3.8 to v1.8.30, are vulnerable to reflected Cross-Sit

In Factor (App Framework & Headless CMS) forum plugin, versions v1.3.8 to v1.8.30, are vulnerable to reflected Cross-Site Scripting (XSS) at the “tags” and “category” parameters in the URL. An unauthenticated attacker can execute malicious JavaScript code and steal the session cookies.

MEDIUM · CVSS 6.1 EPSS 0.01511
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules4 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
▤

Affected Products & Versions

1
darwin factor>= 1.3.8 and <= 1.8.30
◈

Sigma Hunt Rules

4
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighDisabling Multi Factor Authentication
productmediumAuthentications To Important Apps Using Single Factor Authentication
productmediumMulti Factor Authentication Disabled For User Account
productlowAzure AD Only Single Factor Authentication Required
▣

Scoring & Timeline

6.1
MEDIUM · CVSS v3.1 · vulnerabilitylab@mend.io
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Nov 2021 · 10:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/FactorJS/factor/blob/v1.8.30/%40plugins/plugin-forum/topic-list.vue#L141-L143
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25983Third Party Advisory
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