Skip to main content

Wikimedia UrlShortener CVE-2026-13706

| EUVDEUVD-2026-41032 NONE
Improper Input Validation (CWE-20)
2026-07-01 wikimedia-foundation GHSA-v4ch-5p7w-6w58
Information Disclosure PHP Urlshortener

Severity by source

Vendor (wikimedia-foundation) PRIMARY
0.0 NONE
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N
vuln.today AI
4.3 MEDIUM

Network-accessible, low complexity; PR:L per provided vector; C:L reflects Information Disclosure tag despite zero-impact provided CVSS, flagged as contradictory.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (wikimedia-foundation).

CVSS VectorVendor: wikimedia-foundation

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None

Lifecycle Timeline

1
Analysis Generated
Jul 01, 2026 - 16:06 vuln.today

DescriptionCVE.org

Improper input validation vulnerability in Wikimedia Foundation UrlShortener.

This vulnerability is associated with program files includes/UrlShortenerUtils.Php.

AnalysisAI

Improper input validation in Wikimedia Foundation's UrlShortener extension (includes/UrlShortenerUtils.php) exposes a potential information disclosure path accessible to low-privileged authenticated users over the network. The vulnerability is classified under CWE-20 and tagged as an information disclosure issue, though the provided CVSS 4.0 vector records zero impact across all dimensions - a notable contradiction with the 'Information Disclosure' tag that warrants independent verification. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts
Continue with Google Continue with GitHub

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate to target MediaWiki instance
Delivery
Identify UrlShortener API endpoint
Exploit
Submit crafted/malformed URL input
Execution
Trigger improper validation in UrlShortenerUtils.php
Impact
Obtain disclosed information
Sign in to reveal

Vulnerability AssessmentAI

Exploitation Exploitation requires the target MediaWiki instance to have the Wikimedia UrlShortener extension installed and active, which is not a default MediaWiki configuration. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Real-world risk appears low at this time. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An authenticated low-privileged user submits a crafted URL or malformed input to the UrlShortener extension's API endpoint. Due to insufficient validation in UrlShortenerUtils.php, the application processes the input in an unintended way - potentially disclosing internal URL mappings, resolving restricted short URLs, or leaking path information. …
Remediation No vendor-released patch or fixed version has been independently confirmed at time of analysis - the sole reference is the Wikimedia Phabricator task T418533 (https://phabricator.wikimedia.org/T418533), which should be monitored for patch availability and exact fixed version. … Detailed patch versions, workarounds, and compensating controls in full report.
Sign in to read full assessment

Threat intelligence, references, and detailed analysis are available after sign-in.

More in PHP

View all
CVE-2012-1823 CRITICAL POC
9.8 May 11

sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI script (aka php-cgi), does not
CVE-2016-1555 CRITICAL POC
9.8 Apr 21

(1) boardData102.php, (2) boardData103.php, (3) boardDataJP.php, (4) boardDataNA.php, and (5) boardDataWW.php in Netgear
CVE-2024-11680 CRITICAL POC
9.8 Nov 26

ProjectSend versions prior to r1720 are affected by an improper authentication vulnerability. Rated critical severity (C
CVE-2025-49113 CRITICAL POC
9.9 Jun 02

Roundcube Webmail contains a critical PHP object deserialization vulnerability (CVE-2025-49113, CVSS 9.9) that allows au
CVE-2017-9841 CRITICAL POC
9.8 Jun 27

Util/PHP/eval-stdin.php in PHPUnit before 4.8.28 and 5.x before 5.6.3 allows remote attackers to execute arbitrary PHP c
CVE-2025-0108 HIGH POC
8.8 Feb 12

Palo Alto Networks PAN-OS management web interface contains an authentication bypass allowing unauthenticated attackers

CVE-2021-25298 HIGH POC
8.8 Feb 15

Nagios XI version xi-5.7.5 is affected by OS command injection. Rated high severity (CVSS 8.8), this vulnerability is re
CVE-2021-25296 HIGH POC
8.8 Feb 15

Nagios XI version xi-5.7.5 is affected by OS command injection. Rated high severity (CVSS 8.8), this vulnerability is re
CVE-2013-4983 CRITICAL POC
10.0 Sep 10

The get_referers function in /opt/ws/bin/sblistpack in Sophos Web Appliance before 3.7.9.1 and 3.8 before 3.8.1.1 allows
CVE-2023-6553 CRITICAL POC
9.8 Dec 15

The Backup Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1
CVE-2024-46506 CRITICAL POC
10.0 May 13

NetAlertX (formerly PiAlert) versions 23.01.14 through 24.x before 24.10.12 allow unauthenticated command injection thro
CVE-2024-8353 CRITICAL POC
9.8 Sep 28

The GiveWP - Donation Plugin and Fundraising Platform plugin for WordPress is vulnerable to PHP Object Injection in all

Same weakness CWE-20 – Improper Input Validation

View all
CVE-2021-44228 CRITICAL POC
10.0
CVE-2024-3400 CRITICAL POC
10.0
CVE-2022-47966 CRITICAL POC
9.8
CVE-2023-22515 CRITICAL POC
9.8
CVE-2009-0927 HIGH POC
8.8
CVE-2017-9791 CRITICAL POC
9.8
CVE-2017-15944 CRITICAL POC
9.8
CVE-2019-0604 CRITICAL POC
9.8

Same technique Information Disclosure

View all
CVE-2013-2251 CRITICAL POC
9.8
CVE-2017-5638 CRITICAL POC
9.8
CVE-2025-24813 CRITICAL POC
9.8
CVE-2015-1701 HIGH POC
7.8
CVE-2017-0147 HIGH POC
7.5
CVE-2014-6324 HIGH POC
8.8
CVE-2023-7028 CRITICAL POC
10.0
CVE-2017-0213 HIGH POC
7.3

Share

CVE-2026-13706 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy