CVE-2025-53502 | BDVDB-2026-284689 Detail

Wikimedia FoundationMediawiki - FeaturedFeeds Extension

Description#

Improper Input Validation vulnerability in Wikimedia Foundation Mediawiki - FeaturedFeeds Extension allows Cross-Site Scripting (XSS).This issue affects Mediawiki - FeaturedFeeds Extension: 1.39.X, 1.42.X, 1.43.X.

Impact#

CAPEC-63 Cross-Site Scripting (XSS)

Weaknesses#

CWE-20 Improper Input Validation

References#

Exploit#

No public exploit known

History#

Version 12025-07-03Record published in the CVE List.
Version 22025-07-10Most recent update recorded in the CVE List.

Published

Published: 2025-07-03
Last modified: 2025-07-10

Vendor information

Vendor: Wikimedia Foundation
Product: Mediawiki - FeaturedFeeds Extension

All Wikimedia Foundation vulnerabilities

Score

6.5 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 14.6.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Improper Input Validation

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
1.39.x
Fixed
Not stated
Vulnerable
1.42.x
Fixed
Not stated
Vulnerable
1.43.x
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

6.5 Medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity	Low
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).