CVE-2025-10354Network attack vector

JavaScript execution via reflected endpoint parameter

Published Apr 21, 2026 · Updated Apr 21, 2026

Reflected XSS in Semantic MediaWiki 5.0.2 allows remote attackers to execute JavaScript in a victim's browser through a malicious URL. INCIBE identifies the /index.php/Speciaal:GefacetteerdZoeken endpoint parameter as the input locus but does not disclose its name or the exact response-generation operation that fails to neutralize it. A victim must open the crafted link; the resulting script can access browser-visible data or perform actions in that victim's session.

CVSS severity5.1
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Semantic MediaWiki 5.0.2 allows remote attackers to execute JavaScript in a victim's browser through a malicious URL. INCIBE identifies the /index.php/Speciaal:GefacetteerdZoeken endpoint parameter as the input locus but does not disclose its name or the exact response-generation operation that fails to neutralize it. A victim must open the crafted link; the resulting script can access browser-visible data or perform actions in that victim's session.

The record

CVE
CVE-2025-10354
Published
Apr 21, 2026
Updated
Apr 21, 2026
Vendor
Semantic MediaWiki
Product
Semantic MediaWiki
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Semantic MediaWiki · Semantic MediaWikiversion=5.0.2

Published CVSS scores

5.1INCIBECVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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