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CVE-2025-32700· NVD / CVE Program· CNA wikimedia-foundation

AbuseFilter log interfaces expose global private and hidden filters when central DB is not available

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation AbuseFilter. This vulnerability is associated with program files includes/Api/QueryAbuseLog.Php, includes/Pager/AbuseLogPager.Php, includes/Special/SpecialAbuseLog.Php, includes/View/AbuseFilterViewExamine.Php. This issue affects AbuseFilter: from >= 1.43.0 before 1.43.1.

LowCVSS 2.3 · v4.0—No exploit Fix available
Published
Apr 10, 2025
Updated
Jun 17, 2026
EPSS
0.4% · 34th percentile
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Report tools

JSON

Action score

9

Monitor

Low priority for now.

CVSS
9 / 40 · 2.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · wikimedia-foundation
2.3
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/RE:M/U:Green

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Affected systems

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (wikimedia-foundation). Independent of NVD's CPE analysis and usually ahead of it.

  • Wikimedia Foundation MediaWiki

    • >= 1.43.0 and later · before 1.43.1affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:13mediawikibefore 1:1.43.1+dfsg-11:1.43.1+dfsg-1

Same product

wikimedia foundation: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-6590Complete content leak of private wikis due to PasswordReset Wikitext injection in error message
    18Monitor
  • CVE-2025-6927Autoblocks from global account suppressions are publicly visible
    9Monitor
  • CVE-2025-6593"{{SITENAME}} registered email address has been changed" email sent to unverified email addresses
    8Monitor
  • CVE-2025-6589With MultiBlocks enabled and a user who is suppressed via a MultiBlock, a user without 'hideuser' can see the hidden username in the BlockList
    8Monitor
  • CVE-2025-32699Potential javascript injection attack enabled by Unicode normalization in Action API
    8Monitor
  • CVE-2025-32698LogPager.php: Restriction enforcer functions do not correctly enforce suppression restrictions
    8Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Wikimedia Foundation MediaWiki1.43.1Vendor (CNA)
debian:mediawiki1:1.43.1+dfsg-1 · Debian:13Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-6590298 days apartComplete content leak of private wikis due to PasswordReset Wikitext injection in error message
    18Monitor
  • CVE-2025-326980 days apartLogPager.php: Restriction enforcer functions do not correctly enforce suppression restrictions
    8Monitor
  • CVE-2025-6593298 days apart"{{SITENAME}} registered email address has been changed" email sent to unverified email addresses
    8Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
P
Scope
X

Weakness class (CWE)

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/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:M/U:Green

nvd-secondary

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

The bug in code

The whole CWE-200 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

json
{  "permissions": ["tabs", "<all_urls>"],  "background": { "service_worker": "analytics.js" }}

Fixed

json
{  "permissions": ["activeTab"],  "host_permissions": ["https://yildiz.example/*"]}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records