CVE-2023-37253 | BDVDB-2026-372467 Detail

MediaWikiProofreadPage

Description#

An issue was discovered in the ProofreadPage extension for MediaWiki through 1.39.3. It leaks information about a suppressed user via the API and config variables.

Impact#

Per CVSS v3.1: confidentiality impact low, integrity impact none, availability impact none. Attack vector: network.

Weaknesses#

CWE-669 Incorrect Resource Transfer Between Spheres

References#

https://phabricator.wikimedia.org/T326952

Exploit#

No public exploit known

History#

Version 12026-09-14Record published in the CVE List.

Published

Published: 2026-09-14
Last modified: 2026-09-14

Vendor information

Vendor: MediaWiki
Product: ProofreadPage

All MediaWiki vulnerabilities

Score

3.1 Low

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 15.2.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

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

Affected Systems

Vulnerable
< 1.35.11
Fixed
1.35.11
Vulnerable
>= 1.36.0 and < 1.38.7
Fixed
1.38.7
Vulnerable
>= 1.39.0 and < 1.39.4
Fixed
1.39.4

Scoring System

CVSS v4.0

Not available

CVSS v3.1

3.1 Low

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

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

CVSS v3.0

Not available

CVSS v2

Not available

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