CVE-2026-22191Network attack vector

Unauthenticated shortcode execution via comment email notifications

Published Mar 13, 2026 · Updated Mar 13, 2026

Shortcode injection in wpDiscuz before 7.6.47 allows remote attackers to execute server-side shortcodes through comment email notifications. The WpdiscuzHelperEmail class passes attacker-controlled comment content to do_shortcode() before wp_mail(), causing installed shortcode handlers to process it. The original CNA record required only comment submission, but the current CVE record replaces wpDiscuz with an unrelated product, leaving this association disputed.

CVSS severityUnavailable
Unscored
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Shortcode injection in wpDiscuz before 7.6.47 allows remote attackers to execute server-side shortcodes through comment email notifications. The WpdiscuzHelperEmail class passes attacker-controlled comment content to do_shortcode() before wp_mail(), causing installed shortcode handlers to process it. The original CNA record required only comment submission, but the current CVE record replaces wpDiscuz with an unrelated product, leaving this association disputed.

The record

CVE
CVE-2026-22191
Published
Mar 13, 2026
Updated
Mar 13, 2026
Vendor
AdvancedCoding
Product
wpDiscuz
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 13, 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 <7.6.47

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

AdvancedCoding · wpDiscuzversion=0 <7.6.47

Published CVSS scores

No CVSS assessment is available in this record.

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 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

T1190Exploit Public-Facing Application

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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