CVE-2025-31472Network attack vector

Administrator-level stored XSS via unescaped input

Published Mar 28, 2025 · Updated Apr 28, 2026

Stored XSS in Michele Marri Flatty 2.0.0 and earlier allows remote authenticated users to inject scripts into WordPress pages. The plugin stores administrator-supplied content without sufficient sanitization and renders it without adequate output escaping. Administrator-level access is required, and execution occurs when another user opens the injected page on a multisite installation or where unfiltered_html is disabled.

CVSS severity5.9
Medium
EPSS probability0.22%
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 Michele Marri Flatty 2.0.0 and earlier allows remote authenticated users to inject scripts into WordPress pages. The plugin stores administrator-supplied content without sufficient sanitization and renders it without adequate output escaping. Administrator-level access is required, and execution occurs when another user opens the injected page on a multisite installation or where unfiltered_html is disabled.

The record

CVE
CVE-2025-31472
Published
Mar 28, 2025
Updated
Apr 28, 2026
Vendor
Michele Marri
Product
Flatty
Classifications
CWE-79, CAPEC-592, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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 <=2.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Michele Marri · Flattyversion=0 <=2.0.0

Published CVSS scores

5.9PatchstackCVSS:3.1/AV:N/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1203Exploitation for Client Execution

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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