What is the CVSS score of CVE-2021-27822?

CVE-2021-27822 has a CVSS 3.1 base score of 4.8 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.6%.

Is there a public PoC exploit available for CVE-2021-27822?

Yes, a public proof-of-concept exploit is available for CVE-2021-27822. Prioritise patching immediately. EPSS: 0.6%.

Vehicle Parking Management System CVE-2021-27822

MEDIUM

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

2021-08-19 cve@mitre.org

XSS Vehicle Parking Management System

4.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.8 MEDIUM

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Aug 19, 2021 - 14:39 nvd

MEDIUM 4.8

DescriptionNVD

AnalysisAI

A persistent cross site scripting (XSS) vulnerability in the Add Categories module of Vehicle Parking Management System 1.0 allows attackers to execute arbitrary web scripts or HTML via a crafted. Rated medium severity (CVSS 4.8), 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 persistent cross site scripting (XSS) vulnerability in the Add Categories module of Vehicle Parking Management System 1.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the Category field. Affected products include: Phpgurukul Vehicle Parking Management System.

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.