Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%

Buy Us a Coffee

CVE-2026-116882— Semantic MediaWiki 4.2.0 before 7.3.1 Stored XSS via FacetedSearch Exploration Labels

Quick assessment

Affected

SemanticMediaWiki SemanticMediaWiki

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Semantic MediaWiki 4.2.0 至 7.3.1（不含 7.3.1）版本存在存储型跨站脚本（XSS）漏洞。经过身份验证的个人资料或架构编辑者可通过 FacetedSearch 的探索链接标签（exploration-link labels）注入 HTML。攻击者可在标签中存储标记，而 ExploreListBuilder::buildHTML() 方法会将这些标记未经转义地传递给 Html::rawElement()，从而篡改 Special:FacetedSearch 页面，并可能在查看者的浏览器

CVSS 4.8 · Medium Updated Oct 27, 2026

Possible ATT&CK Techniques 2 AI

T1203 · Exploitation for Client Execution T1059.007 · JavaScript

Get alerts for future matching vulnerabilities Log in to subscribe

Vulnerability Information

Have questions about the vulnerability? See if Shenlong's analysis helps!

View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title

Semantic MediaWiki 4.2.0 before 7.3.1 Stored XSS via FacetedSearch Exploration Labels

Source: CVE Program / CVE List V5

Vulnerability Description

Semantic MediaWiki from 4.2.0 before 7.3.1 contains a stored cross-site scripting vulnerability that allows authenticated profile or schema editors to inject HTML through FacetedSearch exploration-link labels. Attackers can store markup in the label, which ExploreListBuilder::buildHTML() passes unescaped to Html::rawElement(), altering the Special:FacetedSearch page and potentially running scripts in viewers' browsers.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
SemanticMediaWiki	SemanticMediaWiki	4.2.0 ~ 7.3.1	-

II. Public POCs for CVE-2026-116882

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-116882

请登录查看更多情报信息。

Other References for CVE-2026-116882 (2)

https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-3r5m-693w-jm33 vendor-advisory
https://www.vulncheck.com/advisories/semantic-mediawiki-4.2.0-before-7.3.1-stored-xss-via-facetedsearch-exploration-labels third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-116882

Same Patch Batch · SemanticMediaWiki · 2026-10-27 · 22 CVEs total

CVE-2026-116871	7.5 HIGH	Semantic MediaWiki 3.0.0 before 7.3.1 Uncontrolled Recursion via Special:Ask
CVE-2026-116872	7.5 HIGH	Semantic MediaWiki 3.0.0 before 7.3.1 Denial of Service via Special:Search Compact Filters
CVE-2026-116878	7.5 HIGH	Semantic MediaWiki 2.5.0 before 7.3.1 Resource Exhaustion via Special:PropertyLabelSimilar
CVE-2026-116890	7.3 HIGH	Semantic MediaWiki 3.0.0 before 7.3.0 Missing Authorization via smwtask API
CVE-2026-116873	7.3 HIGH	Semantic MediaWiki 7.3.0 Missing Authorization via smwtask API run-joblist and update
CVE-2026-116876	7.1 HIGH	Semantic MediaWiki 2.5.0 before 7.3.1 Missing Authorization via Is edit protected
CVE-2026-116880	7.1 HIGH	Semantic MediaWiki 3.0.0 before 7.3.1 CSRF via Special:SMWAdmin Maintenance Actions
CVE-2026-116877	6.5 MEDIUM	Semantic MediaWiki 2.5.0 before 7.3.1 Resource Exhaustion via #set_recurring_event
CVE-2026-116892	6.1 MEDIUM	SemanticMediaWiki 3.1.0 before 7.3.1 Reflected XSS via Special:Search smw Profile
CVE-2026-116889	6.1 MEDIUM	SemanticMediaWiki 2.5.0 before 7.3.1 Stored XSS via Special:Browse Code Property
CVE-2026-116881	6.1 MEDIUM	Semantic MediaWiki 3.0.0 before 7.3.1 XSS via Property-Value Autocomplete
CVE-2026-116884	6.1 MEDIUM	SemanticMediaWiki 5.0.0 before 7.3.1 Stored XSS via Tooltip Module data-* Attributes
CVE-2026-116874	6.1 MEDIUM	SemanticMediaWiki 3.1.0 before 7.3.1 Reflected XSS via JsonResultPrinter Default Parameter
CVE-2026-116885	6.1 MEDIUM	Semantic MediaWiki before 7.3.1 Reflected XSS via Special:SMWAdmin id Parameter
CVE-2026-116891	6.1 MEDIUM	SemanticMediaWiki 4.2.0 before 7.2.1 Reflected XSS via Special:FacetedSearch cstate
CVE-2026-116875	6.1 MEDIUM	SemanticMediaWiki 3.0.0 before 7.3.1 Reflected XSS via Special:Ask Separator Parameters
CVE-2026-116887	5.4 MEDIUM	Semantic MediaWiki 3.0.0 before 7.3.1 Stored XSS via Special:Browse Keyword Property
CVE-2026-116879	5.4 MEDIUM	Semantic MediaWiki 7.3.0 before 7.3.1 Missing Authorization via smwtask Update Task
CVE-2026-116886	5.4 MEDIUM	Semantic MediaWiki before 7.3.1 Stored XSS via External Identifier in Special:Browse
CVE-2026-116883	4.8 MEDIUM	Semantic MediaWiki 3.1.0 before 7.3.1 Stored XSS via Schema Descriptions

Showing top 20 of 22 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: SemanticMediaWiki

Same vendor: SemanticMediaWiki

Same weakness: CWE-79