PT-2025-52332 · Simple Machines · Simple Machines Forum

Mbiesiad · Published 2025-12-18 · Updated 2025-12-31 · CVE-2025-67163

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Simple Machines Forum version 2.1.6

Description A stored cross-site scripting (XSS) issue exists in Simple Machines Forum. Successful exploitation allows attackers to execute arbitrary web scripts or HTML by injecting a crafted payload into the Forum Name parameter.

Recommendations Update Simple Machines Forum to a newer version that contains a fix for this vulnerability. As a temporary workaround, sanitize all user-supplied input for the Forum Name parameter to prevent the injection of malicious scripts.

Exploit

Fix

XSS

RCE

Weakness Enumeration

CWE-83

CWE-79

CWE-20

Related Identifiers

CVE-2025-67163

GHSA-P2XM-X9FP-5R7X

Affected Products

Simple Machines Forum

References · 9

• 🔥 https://github.com/mbiesiad/vulnerability-research/tree/main/CVE-2025-67163 · Exploit
• https://osv.dev/vulnerability/CVE-2025-67163 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-67163 · Security Note
• https://github.com/SimpleMachines/SMF/security/advisories/GHSA-p2xm-x9fp-5r7x · Note
• https://github.com/SimpleMachines/SMF/blob/release-3.0/Themes/default/Stats.template.php#L26 · Note
• https://github.com/SimpleMachines/SMF · Note
• https://t.me/cveNotify/147391 · Telegram Post
• https://wiki.simplemachines.org/smf/Installing · Note
• https://twitter.com/CVEnew/status/2002487763778875803 · Twitter Post