CVE-2026-84812Network attack vector

Unauthenticated script execution via undisclosed XSS mechanism

Published Sep 3, 2026 · Updated Sep 3, 2026

Cross-site scripting in WordPlus Better Messages 2.15.27 and earlier allows remote attackers to run script via unauthenticated requests. Patchstack has not published the affected request parameter, rendering locus, or operation that fails to neutralize untrusted input. Exploitation requires user interaction with attacker-controlled content, after which script runs in the Better Messages site's browser context.

CVSS severity7.1
High
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

Cross-site scripting in WordPlus Better Messages 2.15.27 and earlier allows remote attackers to run script via unauthenticated requests. Patchstack has not published the affected request parameter, rendering locus, or operation that fails to neutralize untrusted input. Exploitation requires user interaction with attacker-controlled content, after which script runs in the Better Messages site's browser context.

The record

CVE
CVE-2026-84812
Published
Sep 3, 2026
Updated
Sep 3, 2026
Vendor
WordPlus
Product
Better Messages
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 3, 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=n/a <=2.15.27 changes=[{"at":"2.15.28","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WordPlus · Better Messagesversion=n/a <=2.15.27 changes=[{"at":"2.15.28","status":"unaffected"}]

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

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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