CVE-2026-96872Low· 2.9▾ TwilightPoC available

Improper handling of insufficient permissions or privileges vulnerability in The Wikimedia Foundation Mediawiki - WikiLambda Extension on Linux, MacOS, and Windows allows Accessing Functionality Not Properly Constrained by ACLs. This is…

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score28/ 100 · Low

impact 16 · likelihood 0.1 · exploitation 12

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

A public proof-of-concept already exists for this vulnerability — see Exploit availability below.

…

Published

Sep 23, 2026

Updated

Sep 24, 2026

CVSS

2.9

Vendor

The Wikimedia Foundation

Product

Mediawiki - WikiLambda Extension

CWE

CWE-280

Depth score

28 · Low

EPSS

0.35% · p28

Platforms

—

Source

NVD

Vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:P/AU:Y

Exploit availability

Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.

checked 2026-10-27

GitHub PoCs

1 public repository

BomboBombone/CVE-2026-96872 ↗

CISA SSVC

decided 2026-09-23

Exploitation: none
Automatable: no
Technical impact: partial

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.

EPSS history

Exploit-prediction probability, daily snapshots since Sep 24.

0.2% → 0.3%▲ 0.1%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

5 events · 33 days

Sep 23, 2026Published
Disclosed via NVD
Sep 24, 2026Record revised
Last analysed / modified upstream
Sep 24, 2026EPSS first tracked
0.2%
Oct 2, 2026Public exploit observed
1 GitHub repo
Oct 26, 2026EPSS peak
0.2% → 0.3%

The Wikimedia Foundation CWE-280 #nvd #cve.org #exploit-available

Affected

mediawiki_-_wikilambda_extension < 1.47.0

Full technical detail▾

Overview

This issue affects Mediawiki - WikiLambda Extension: before 1.47.0.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Change history

Field changes observed since this record was first indexed.

Oct 2, 2026Public exploit / PoC published

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org#exploit-available

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CVE-2026-96872Low· 2.9▾ TwilightPoC available

Improper handling of insufficient permissions or privileges vulnerability in The Wikimedia Foundation Mediawiki - WikiLambda Extension on Linux, MacOS, and Windows allows Accessing Functionality Not Properly Constrained by ACLs. This is…

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score28/ 100 · Low

impact 16 · likelihood 0.1 · exploitation 12

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

A public proof-of-concept already exists for this vulnerability — see Exploit availability below.

…

Published

Sep 23, 2026

Updated

Sep 24, 2026

CVSS

2.9

Vendor

The Wikimedia Foundation

Product

Mediawiki - WikiLambda Extension

CWE

CWE-280

Depth score

28 · Low

EPSS

0.35% · p28

Platforms

—

Source

NVD

Vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:P/AU:Y

Exploit availability

Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.

checked 2026-10-27

GitHub PoCs

1 public repository

BomboBombone/CVE-2026-96872 ↗

CISA SSVC

decided 2026-09-23

Exploitation: none
Automatable: no
Technical impact: partial

EPSS history

Exploit-prediction probability, daily snapshots since Sep 24.

0.2% → 0.3%▲ 0.1%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

5 events · 33 days

Sep 23, 2026Published
Disclosed via NVD
Sep 24, 2026Record revised
Last analysed / modified upstream
Sep 24, 2026EPSS first tracked
0.2%
Oct 2, 2026Public exploit observed
1 GitHub repo
Oct 26, 2026EPSS peak
0.2% → 0.3%

The Wikimedia Foundation CWE-280 #nvd #cve.org #exploit-available

Affected

mediawiki_-_wikilambda_extension < 1.47.0

Full technical detail▾

Overview

This issue affects Mediawiki - WikiLambda Extension: before 1.47.0.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Change history

Field changes observed since this record was first indexed.

Oct 2, 2026Public exploit / PoC published

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org#exploit-available