CVE-2025-53495

CRITICAL

Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - AbuseFilter Extension allows Unauthorized Access.This issue affects Mediawiki - AbuseFilter Extension: from 1.43.X before 1.43.2.

Affects 0 products across 3 vendors.

BCS6.54
CVSS 3.19.1
EPSS0.3%
Percentile21th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, no availability impact.
CWE Weakness Definitions
CWE-862: Missing Authorization

Software does not check whether an authenticated actor has permission for the requested operation.

Related Attack Patterns (CAPEC)
CAPEC-665 Exploitation of Thunderbolt Protection Flaws
via CWE-862

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ SAGE Intelligence — CITED Relevance Research Team

A Missing Authorization vulnerability in the Wikimedia Foundation Mediawiki - AbuseFilter Extension allows unauthorized access, affecting versions from 1.43.X before 1.43.2.

BSID: BS-2025-GLOBAL-263342-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: HIGH

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Frequently Asked Questions
What is CVE-2025-53495?
A Missing Authorization vulnerability in the Wikimedia Foundation Mediawiki - AbuseFilter Extension allows unauthorized access, affecting versions from 1.43.X before 1.43.2.
What is the CVSS score for CVE-2025-53495?
CVE-2025-53495 has CVSS 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS: 0.3%.
Is CVE-2025-53495 actively exploited?
No confirmed active exploitation of CVE-2025-53495 as of 2026-05-30.
How do I remediate CVE-2025-53495?
Priority: IMMEDIATE.
What systems are affected by CVE-2025-53495?
CVE-2025-53495 affects: Foundation, Mediawiki, Wikimedia.
Vulnerability Details
CVE IDCVE-2025-53495
BSIDBS-2025-GLOBAL-263342-C BreachSpider Global ID
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Published2025-07-07
Last Modified2026-04-15
ICS Relevance15%
Weakness (CWE)
Missing Authorization
SourceNVD
Official Description

Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - AbuseFilter Extension allows Unauthorized Access.This issue affects Mediawiki - AbuseFilter Extension: from 1.43.X before 1.43.2.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

An attacker can exploit this vulnerability to gain unauthorized access to the AbuseFilter Extension, potentially leading to unauthorized modifications of abuse filters, which can disrupt the functionality of the wiki or allow malicious content to bypass filters.

Exploitation Likelihood: HIGH

Affected Products
VendorProductFixed Version
Foundation — —
Mediawiki — —
Wikimedia — —
Remediation

No patch URL on record. Monitor vendor security advisories directly.

Threat Intelligence
● Threat Intelligence Validated: July 2026 | Threat Age: 383 Days
CISA KEVNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
SAGE Enrichment Record — provenance & audit hash
Model/workspace/models/qwen2.5-coder-32b-instruct-bf16
ConfidenceHIGH
Enriched At2026-05-24
SHA-512 Audit Hash1ced3db7eccbac1360f27a5618de7951e7a9142c80e0f2a2bb37eaea88380a70b44b2fffba189a7014ed1d91ea4bd17e3ca190ecdb9b4cc90117d517424d9e98
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