CVE-2026-12472Network attack vector

Unauthenticated email relay via unescaped form content

Published Jul 2, 2026 · Updated Jul 2, 2026

Authorization bypass in Themeum Kirki 6.0.11 and earlier allows remote attackers to send HTML email through the WordPress site. CompLibFormHandler passes emailSubject to wp_mail() after only sanitize_text_field() and concatenates emailBody text items into HTML without escaping. No account is required; the endpoint can relay phishing mail to registered users and insert a genuine password-reset link for the targeted account.

CVSS severity5.3
Medium
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Themeum Kirki 6.0.11 and earlier allows remote attackers to send HTML email through the WordPress site. CompLibFormHandler passes emailSubject to wp_mail() after only sanitize_text_field() and concatenates emailBody text items into HTML without escaping. No account is required; the endpoint can relay phishing mail to registered users and insert a genuine password-reset link for the targeted account.

The record

CVE
CVE-2026-12472
Published
Jul 2, 2026
Updated
Jul 2, 2026
Vendor
Themeum
Product
Kirki
Classifications
CWE-862, T1566.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 2, 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 <=6.0.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Themeum · Kirkiversion=0 <=6.0.11

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1566.002Spearphishing Link

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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