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CVE-2025-71281

33
FAUCET Score

CVE-2025-71281 is a critical vulnerability affecting XenForo versions prior to 2.3.7, stemming from insufficient restrictions on methods callable from within templates. This flaw allows unauthorized method invocations due to a loose prefix matching mechanism used for callbacks and variable method calls. Rated 9.8 Critical (CVSS:3.1/AV:N/AC:L), it presents a low-complexity attack vector that can be exploited remotely without user interaction, leading to complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, and public exploit code is unavailable on platforms like Metasploit or ExploitDB. While not on the CISA KEV catalog, the vulnerability has garnered some community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.3.0, < 2.3.7CPE match
cpe:2.3:a:xenforo:xenforo:*:*:*:*:*:*:*:*
< 2.3.7CPE matchmatch criteria
cpe:2.3:a:xenforo:xenforo:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.7HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 4th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

vulncheck.com / advisories/xenforo-template-method-call-restriction-bypass
Third Party Advisory
xenforo.com / community/threads/xenforo-2-3-7-released-includes-security-fixes.232121
Release Notes