CVE-2019-13948 Information

Description

SyGuestBook A5 Version 1.2 allows stored XSS because the isValidData function in include/functions.php does not properly block XSS payloads as demonstrated by a crafted use of the onerror attribute of an IMG element.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Reference

https://fragrant10.github.io/2019/02/22/SyGuestBookA5E4BBA3E7A081E5AEA1E8AEA1.html https://github.com/fragrant10/fragrant10.github.io/blob/master/_posts/2019-02-22-SyGuestBookA5E4BBA3E7A081E5AEA1E8AEA1.md

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

5.4