CVE-2025-47621Network attack vector

Contributor-level stored XSS via unescaped shortcode content

Published May 7, 2025 · Updated May 12, 2026

Stored XSS in Meks Flexible Shortcodes 1.3.6 and earlier allows remote authenticated users to inject scripts into WordPress pages. The plugin's shortcode handlers render contributor-controlled attributes or content into page output without sufficient sanitization and escaping. Contributor-level access is required, and the scripts execute in another user's browser when an injected page is viewed.

CVSS severity6.5
Medium
EPSS probability0.25%
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 Meks Flexible Shortcodes 1.3.6 and earlier allows remote authenticated users to inject scripts into WordPress pages. The plugin's shortcode handlers render contributor-controlled attributes or content into page output without sufficient sanitization and escaping. Contributor-level access is required, and the scripts execute in another user's browser when an injected page is viewed.

The record

CVE
CVE-2025-47621
Published
May 7, 2025
Updated
May 12, 2026
Vendor
Meks
Product
Meks Flexible Shortcodes
Classifications
CWE-79, CAPEC-592, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 7, 2025CVE publishedPublication date reported by the CVE source.
  2. May 12, 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=0 <=1.3.6 changes=[{"at":"1.3.7","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Meks · Meks Flexible Shortcodesversion=0 <=1.3.6 changes=[{"at":"1.3.7","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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