What is the CVSS score of CVE-2022-31290?

CVE-2022-31290 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.8%.

Is there a public PoC exploit available for CVE-2022-31290?

Yes, a public proof-of-concept exploit is available for CVE-2022-31290. Prioritise patching immediately. EPSS: 0.8%.

Known CVE-2022-31290

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2022-07-08 cve@mitre.org

XSS Known

5.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Jul 08, 2022 - 12:15 nvd

MEDIUM 5.4

DescriptionNVD

AnalysisAI

A cross-site scripting (XSS) vulnerability in Known v1.2.2+2020061101 allows authenticated attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Your Name text. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. A cross-site scripting (XSS) vulnerability in Known v1.2.2+2020061101 allows authenticated attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Your Name text field. Affected products include: Withknown Known.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.