CVE-2023-53978 — MEDIUM (5.4)

Vulnerability Description

myBB Forums 1.8.26 contains a stored cross-site scripting vulnerability in the forum announcement system that allows authenticated administrators to inject malicious scripts when creating announcements. Attackers can exploit this vulnerability by inserting script payloads in the announcement title field when adding announcements through the 'Forums and Posts' > 'Forum Announcements' interface, causing arbitrary JavaScript to execute when the announcement is displayed on the forum.

CVSS Score

5.4

MEDIUM

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

Affected Products

Vendor	Product	Versions
Mybb	Mybb	1.8.26

Related Weaknesses (CWE)

CWE-79

References

https://mybb.com/Product
https://www.exploit-db.com/exploits/51136Exploit
https://www.vulncheck.com/advisories/mybb-forums-stored-cross-site-scripting-viaExploitThird Party Advisory

FAQ

What is CVE-2023-53978?

CVE-2023-53978 is a vulnerability with a CVSS score of 5.4 (MEDIUM). myBB Forums 1.8.26 contains a stored cross-site scripting vulnerability in the forum announcement system that allows authenticated administrators to inject malicious scripts when creating announcement...

How severe is CVE-2023-53978?

CVE-2023-53978 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-2023-53978?

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