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CVE-2025-61648

21
FAUCET Score

CVE-2025-61648 describes a Cross-site Scripting (XSS) vulnerability in Wikimedia Foundation's CheckUser extension, specifically affecting versions prior to 1.44.1. This flaw stems from improper neutralization of input during web page generation within the modules/ext.CheckUser.TempAccounts/components/ShowIPButton.Vue and modules/ext.CheckUser.TempAccounts/SpecialBlock.Js files. The vulnerability has a CVSS 4.0 score of 0.0, indicating no direct impact on confidentiality, integrity, or availability, and requires high privileges for any potential interaction. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.44.1CPE matchmatch criteria
cpe:2.3:a:mediawiki:checkuser:*:*:*:*:*:mediawiki:*:*

CVSS Data

CVSS version used by this source: 4.0

0.0NONE

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/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
HIGH
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
NONE
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
UNREPORTED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
4.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 3rd percentile among its peer group of 26,221 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

phabricator.wikimedia.org / T402077
Permissions Required