Vendor
Wikimedia Foundation vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 77 vulnerabilities in Wikimedia Foundation: 0 in the last 7 days and 35 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-103585, was published on 30 September 2026. Nothing in the last four weeks, down from 35 vulnerabilities in the four before. 4 technologies have a page of their own.
- Last 7 days
- 0
- Last 90 days
- 35
- Critical, all time
- 0
- Exploited in the wild
- 0
About Wikimedia Foundation
The Wikimedia Foundation is a non-profit organization that operates Wikipedia and other wiki projects.
Wikimedia Foundation technologies
Latest Wikimedia Foundation vulnerabilities
- CVE-2026-103585: Wikimedia MediaSearch XSS vulnerability in HTML tag handlinginfoEPSS 0.3%
- CVE-2026-103584: MediaWiki CommonsMetadata extension cross-site scriptinginfoEPSS 0.3%
- CVE-2026-103446: MediaWiki WikiLambda authorization bypass in abstract fragment executioninfo
- CVE-2026-103445: MediaWiki Page Forms stored cross-site scripting in autoedit redirectinfo
- CVE-2026-103439: Wikimedia MediaWiki Wikbase cross-site scripting in HTML tagsinfo
- CVE-2026-103438: MediaWiki Wikistories XSS in HTML tag sanitizationinfo
- CVE-2026-103437: MediaWiki ReadingLists reflected XSS in imported URLsinfo
- CVE-2026-103444: Wikimedia MediaWiki WikiForum stored XSS in system messagesinfo
- CVE-2026-103443: MediaWiki Collection extension XSS via crafted javascript URLinfo
- CVE-2026-103051: Mediawiki CentralNotice stored cross-site scriptinginfo
- CVE-2026-103050: Mediawiki MassMessage extension stored cross-site scriptinginfo
- CVE-2026-103049: Wikimedia MediaWiki Cargo reflected cross-site scriptinginfo
- CVE-2026-103047: Wikimedia MediaWiki CentralAuth stored cross-site scriptinginfo
- CVE-2026-103046: Wikimedia MediaWiki WikiLambda stored cross-site scriptinginfo
- CVE-2026-103045: MediaWiki Refreshed skin stored cross-site scriptinginfo
- CVE-2026-103044: MediaWiki EasyTimeline XML injection vulnerabilityinfo
- CVE-2026-102796: Wikimedia MediaWiki UserPageViewTracker SQL injectioninfo
- CVE-2026-100245: Mediawiki Wikibase Extension stored cross-site scriptinginfo
- CVE-2026-100244: MediaWiki CentralAuth Extension sensitive information exposureinfo
- CVE-2026-100243: Wikimedia Foundation MediaWiki WikiSEO Extension stored cross-site scriptinginfo
- CVE-2026-100242: MediaWiki DataTransfer Extension uncontrolled resource consumptioninfo
- CVE-2026-100241: Wikimedia MediaWiki EventBus extension information disclosureinfo
- CVE-2026-100240: Mediawiki TemplateSandbox Extension authorization bypassinfo
- CVE-2026-100238: Wikimedia Mediawiki Flow Extension stored XSSinfo
- CVE-2026-100383: Mediawiki WikiLambda extension stored XSS in Visual Editor integrationinfo
Most severe Wikimedia Foundation vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-34089: Vulnerability in Wikimedia Foundation Scribunto. This issue affects Scribunto: from 1.45.0 before 1.45.2.highCVSS 7.5EPSS 0.4%
- CVE-2026-34092: Wikimedia Foundation MediaWiki information disclosure in Skin.phphighCVSS 7.5
- CVE-2026-34091: Wikimedia Foundation MediaWiki sensitive information disclosurehighCVSS 7.5
- CVE-2026-34090: Wikimedia Foundation CheckUser information exposure in Suggested InvestigationshighCVSS 7.5
- CVE-2026-34088: Wikimedia Foundation MediaWiki sensitive information exposurehighCVSS 7.5
- CVE-2026-34087: Wikimedia Foundation OATHAuth sensitive information exposurehighCVSS 7.5
- CVE-2026-39839: Wikimedia MediaWiki Cargo Extension stored XSS in map formatmediumCVSS 6.1EPSS 0.2%
- CVE-2026-39841: Wikimedia MediaWiki Cargo Extension stored XSS in list fieldsmediumCVSS 6.1EPSS 0.2%
- CVE-2026-100237: Wikimedia Foundation Mediawiki Thanks Extension stored XSSmediumCVSS 6.1
- CVE-2026-34095: Wikimedia Foundation MediaWiki incorrect Content-Type in ActionEntryPointmediumCVSS 6.1
Vulnerabilities per week
Nothing in the last four weeks, down from 35 vulnerabilities in the four before. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 11 | 0 | |
| 28 Sep 2026 | 24 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Wikimedia Foundation vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/vendors/wikimedia-foundation)<a href="https://junglewise.ai/threats/vendors/wikimedia-foundation"><img src="https://junglewise.ai/threats/vendors/wikimedia-foundation/badge.svg" alt="Wikimedia Foundation vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/wikimedia-foundation.json, and this page as text at https://junglewise.ai/threats/vendors/wikimedia-foundation.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Wikimedia Foundation vulnerabilities", https://junglewise.ai/threats/vendors/wikimedia-foundation, 9 November 2026.