CVE-2026-24564Network attack vector

Subscriber-level shortcode execution via unvalidated action value

Published Jan 23, 2026 · Updated Jan 23, 2026

Code injection in Textmetrics WordPress Plugin 3.6.5 and earlier allows remote authenticated users to execute arbitrary shortcodes. A reachable action passes an insufficiently validated value to WordPress's do_shortcode function, causing it to interpret the value as shortcode markup rather than inert data. Subscriber-level access is sufficient, and the resulting effect is limited to functionality exposed by shortcodes registered on the affected site.

CVSS severity4.3
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Code injection in Textmetrics WordPress Plugin 3.6.5 and earlier allows remote authenticated users to execute arbitrary shortcodes. A reachable action passes an insufficiently validated value to WordPress's do_shortcode function, causing it to interpret the value as shortcode markup rather than inert data. Subscriber-level access is sufficient, and the resulting effect is limited to functionality exposed by shortcodes registered on the affected site.

The record

CVE
CVE-2026-24564
Published
Jan 23, 2026
Updated
Jan 23, 2026
Vendor
Textmetrics
Product
Textmetrics WordPress Plugin
Classifications
CWE-80, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=<= 3.6.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Textmetrics · Textmetrics WordPress Pluginversion=n/a <=<= 3.6.3

Published CVSS scores

4.3PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo