CVE-2019-13948 — MEDIUM (5.4)

Vulnerability 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 Score

5.4

MEDIUM

CVSS:3.0/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

Affected Products

Vendor	Product	Versions
Syguestbook A5 Project	Syguestbook A5	1.2

Related Weaknesses (CWE)

CWE-79

References

https://fragrant10.github.io/2019/02/22/SyGuestBookA5%E4%BB%A3%E7%A0%81%E5%AE%A1ExploitThird Party Advisory
https://github.com/fragrant10/fragrant10.github.io/blob/master/_posts/2019-02-22ExploitThird Party Advisory
https://fragrant10.github.io/2019/02/22/SyGuestBookA5%E4%BB%A3%E7%A0%81%E5%AE%A1ExploitThird Party Advisory
https://github.com/fragrant10/fragrant10.github.io/blob/master/_posts/2019-02-22ExploitThird Party Advisory

FAQ

What is CVE-2019-13948?

CVE-2019-13948 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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 o...

How severe is CVE-2019-13948?

CVE-2019-13948 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-13948?

Check the references section above for vendor advisories and patch information. Affected products include: Syguestbook A5 Project Syguestbook A5.