CVE-2024-31857Network attack vector

Browser data disclosure via undisclosed script injection

Published Apr 23, 2024 · Updated Aug 2, 2024

Cross-site scripting in WPMU DEV Forminator before 1.15.4 allows remote attackers to alter pages and read user data in a victim's browser. The published advisory does not identify the affected endpoint, input field, or missing encoding operation that permits script injection. Exploitation is unauthenticated over the network but requires a victim to interact with attacker-controlled content, limiting impact to browser-visible data and page content.

CVSS severity6.1
Medium
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in WPMU DEV Forminator before 1.15.4 allows remote attackers to alter pages and read user data in a victim's browser. The published advisory does not identify the affected endpoint, input field, or missing encoding operation that permits script injection. Exploitation is unauthenticated over the network but requires a victim to interact with attacker-controlled content, limiting impact to browser-visible data and page content.

The record

CVE
CVE-2024-31857
Published
Apr 23, 2024
Updated
Aug 2, 2024
Vendor
WPMU DEV
Product
Forminator
Classifications
CWE-79
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 23, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=*
  2. Affected versionversion=prior to 1.15.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WPMU DEV · Forminatorversion=*; version=prior to 1.15.4

Published CVSS scores

5.4CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
6.1JPCERT/CC and IPACVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A: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')

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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