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CVE-2026-116874— SemanticMediaWiki 3.1.0 before 7.3.1 Reflected XSS via JsonResultPrinter Default Parameter

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.

SemanticMediaWiki 3.1.0 至 7.3.1 版本之间存在一个反射型跨站脚本（XSS）漏洞。该漏洞允许未认证的攻击者通过中未转义的默认参数注入恶意脚本。攻击者可诱骗受害者访问一个经过精心构造的链接，该链接包含零结果查询并设置参数，从而在 Wiki 的源站上下文中执行 JavaScript 代码，进而窃取用户会话或 CSRF 令牌。

CVSS 6.1 · Medium Updated Oct 27, 2026

Possible ATT&CK Techniques 3 AI

T1055.002 · Portable Executable Injection T1056.001 · Keylogging T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

SemanticMediaWiki 3.1.0 before 7.3.1 Reflected XSS via JsonResultPrinter Default Parameter

Source: CVE Program / CVE List V5

Vulnerability Description

SemanticMediaWiki from 3.1.0 before 7.3.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject scripts through the unescaped default parameter in JsonResultPrinter. Attackers can lure victims to a crafted Special:Ask link with a zero-result query and request_type=special_page, executing JavaScript in the wiki origin to steal sessions or CSRF tokens.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/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	3.1.0 ~ 7.3.1	-

II. Public POCs for CVE-2026-116874

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-116874

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Other References for CVE-2026-116874 (2)

https://github.com/SemanticMediaWiki/SemanticMediaWiki/security/advisories/GHSA-574v-j8hf-88h3 vendor-advisory
https://www.vulncheck.com/advisories/semanticmediawiki-3.1.0-before-7.3.1-reflected-xss-via-jsonresultprinter-default-parameter third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-116874

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-2026-116880	7.1 HIGH	Semantic MediaWiki 3.0.0 before 7.3.1 CSRF via Special:SMWAdmin Maintenance Actions
CVE-2026-116876	7.1 HIGH	Semantic MediaWiki 2.5.0 before 7.3.1 Missing Authorization via Is edit protected
CVE-2026-116877	6.5 MEDIUM	Semantic MediaWiki 2.5.0 before 7.3.1 Resource Exhaustion via #set_recurring_event
CVE-2026-116885	6.1 MEDIUM	Semantic MediaWiki before 7.3.1 Reflected XSS via Special:SMWAdmin id Parameter
CVE-2026-116884	6.1 MEDIUM	SemanticMediaWiki 5.0.0 before 7.3.1 Stored XSS via Tooltip Module data-* Attributes
CVE-2026-116881	6.1 MEDIUM	Semantic MediaWiki 3.0.0 before 7.3.1 XSS via Property-Value Autocomplete
CVE-2026-116891	6.1 MEDIUM	SemanticMediaWiki 4.2.0 before 7.2.1 Reflected XSS via Special:FacetedSearch cstate
CVE-2026-116889	6.1 MEDIUM	SemanticMediaWiki 2.5.0 before 7.3.1 Stored XSS via Special:Browse Code Property
CVE-2026-116875	6.1 MEDIUM	SemanticMediaWiki 3.0.0 before 7.3.1 Reflected XSS via Special:Ask Separator Parameters
CVE-2026-116892	6.1 MEDIUM	SemanticMediaWiki 3.1.0 before 7.3.1 Reflected XSS via Special:Search smw Profile
CVE-2026-116886	5.4 MEDIUM	Semantic MediaWiki before 7.3.1 Stored XSS via External Identifier in Special:Browse
CVE-2026-116879	5.4 MEDIUM	Semantic MediaWiki 7.3.0 before 7.3.1 Missing Authorization via smwtask Update Task
CVE-2026-116887	5.4 MEDIUM	Semantic MediaWiki 3.0.0 before 7.3.1 Stored XSS via Special:Browse Keyword Property
CVE-2026-116883	4.8 MEDIUM	Semantic MediaWiki 3.1.0 before 7.3.1 Stored XSS via Schema Descriptions
CVE-2026-116882	4.8 MEDIUM	Semantic MediaWiki 4.2.0 before 7.3.1 Stored XSS via FacetedSearch Exploration Labels

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

IV. Related Vulnerabilities

Same product: SemanticMediaWiki

Same vendor: SemanticMediaWiki

Same weakness: CWE-79