VDB-244391 · CVE-2023-45362 · DLA 3671-1

MediaWiki prior 1.35.12/1.39.5/1.40.1 DifferenceEngine.php information disclosure

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.8	$0-$5k	0.00

Summaryinfo

A vulnerability was found in MediaWiki. It has been rated as problematic. This issue affects some unknown processing of the file DifferenceEngine.php. The manipulation leads to information disclosure. This vulnerability is documented as CVE-2023-45362. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in MediaWiki (Content Management System) and classified as problematic. This issue affects an unknown function of the file DifferenceEngine.php. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

An issue was discovered in DifferenceEngine.php in MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. diff-multi-sameuser (aka "X intermediate revisions by the same user not shown") ignores username suppression. This is an information leak.

The weakness was released 11/03/2023. It is possible to read the advisory at phabricator.wikimedia.org. The identification of this vulnerability is CVE-2023-45362 since 10/09/2023. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

By approaching the search of inurl:DifferenceEngine.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.35.12, 1.39.5 or 1.40.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-49655). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Content Management System

Name

MediaWiki

License

open-source

Website

Product: https://www.mediawiki.org/wiki/MediaWiki

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.9
VulDB Meta Temp Score: 3.8

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MediaWiki 1.35.12/1.39.5/1.40.1

Timelineinfo

10/09/2023 🔍
11/03/2023 +25 days 🔍
11/03/2023 +0 days 🔍
02/09/2026 +829 days 🔍

Sourcesinfo

Product: mediawiki.org

Advisory: DLA 3671-1
Status: Confirmed

CVE: CVE-2023-45362 (🔍)
GCVE (CVE): GCVE-0-2023-45362
GCVE (VulDB): GCVE-100-244391
EUVD: 🔍

Entryinfo

Created: 11/03/2023 07:11
Updated: 02/09/2026 17:42
Changes: 11/03/2023 07:11 (39), 11/30/2023 14:25 (1), 11/30/2023 14:29 (11), 06/11/2024 00:41 (15), 02/09/2026 17:42 (2)
Complete: 🔍
Cache ID: 216::103