CVE-2025-66094Network attack vector

Stored XSS via unsanitized shortcode inputs

Published Dec 30, 2025 · Updated Dec 30, 2025

Stored XSS in David McCan Yada Wiki 3.5 and earlier allows remote authenticated users to inject scripts through crafted shortcode input. The plugin stores shortcode attributes without filtering them on save, allowing embedded markup to reach rendered wiki content. Authenticated content-editing access and a later page view are required; the script runs in the visitor's browser within that user's WordPress context.

CVSS severity6.5
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in David McCan Yada Wiki 3.5 and earlier allows remote authenticated users to inject scripts through crafted shortcode input. The plugin stores shortcode attributes without filtering them on save, allowing embedded markup to reach rendered wiki content. Authenticated content-editing access and a later page view are required; the script runs in the visitor's browser within that user's WordPress context.

The record

CVE
CVE-2025-66094
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
David McCan
Product
Yada Wiki
Classifications
CWE-79, CAPEC-592, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 2025Record 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=n/a <=3.5 changes=[{"at":"3.6","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

David McCan · Yada Wikiversion=n/a <=3.5 changes=[{"at":"3.6","status":"unaffected"}]

Published CVSS scores

6.5PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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