MediaWiki prior 1.35.12/1.39.5/1.40.1 i18n Message MediaWiki:Youhavenewmessagesfromusers youhavenewmessagesmanyusers/youhavenewmessages cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability was found in MediaWiki. It has been classified as problematic. This affects the function youhavenewmessagesmanyusers/youhavenewmessages of the file MediaWiki:Youhavenewmessagesfromusers of the component i18n Message Handler. This manipulation causes cross site scripting. This vulnerability is tracked as CVE-2023-45360. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in MediaWiki (Content Management System) and classified as problematic. Affected by this vulnerability is the function youhavenewmessagesmanyusers/youhavenewmessages of the file MediaWiki:Youhavenewmessagesfromusers of the component i18n Message Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

An issue was discovered 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. There is XSS in youhavenewmessagesmanyusers and youhavenewmessages i18n messages. This is related to MediaWiki:Youhavenewmessagesfromusers.

The weakness was disclosed 11/03/2023. The advisory is shared at phabricator.wikimedia.org. This vulnerability is known as CVE-2023-45360 since 10/09/2023. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

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-2023-49653). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

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

NVD Base Score: 5.4
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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: phabricator.wikimedia.org
Status: Confirmed

CVE: CVE-2023-45360 (🔍)
GCVE (CVE): GCVE-0-2023-45360
GCVE (VulDB): GCVE-100-244417
EUVD: 🔍

Entryinfo

Created: 11/03/2023 07:38
Updated: 02/09/2026 17:42
Changes: 11/03/2023 07:38 (41), 11/30/2023 15:43 (11), 06/11/2024 00:41 (15), 04/21/2025 06:13 (4), 02/09/2026 17:42 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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