CVE-2024-13557Network attack vector

Unauthenticated shortcode execution via unchecked action value

Published Mar 29, 2025 · Updated Apr 8, 2026

Code injection in Shortcodes by United Themes 5.1.6 and earlier allows remote attackers to execute arbitrary WordPress shortcodes. An exposed action accepts an insufficiently validated value and passes it to WordPress's do_shortcode function, causing attacker-supplied shortcode markup to be interpreted and run. No authentication or user interaction is required; the resulting confidentiality and integrity effects depend on which shortcodes are registered on the affected site.

CVSS severity6.5
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Shortcodes by United Themes 5.1.6 and earlier allows remote attackers to execute arbitrary WordPress shortcodes. An exposed action accepts an insufficiently validated value and passes it to WordPress's do_shortcode function, causing attacker-supplied shortcode markup to be interpreted and run. No authentication or user interaction is required; the resulting confidentiality and integrity effects depend on which shortcodes are registered on the affected site.

The record

CVE
CVE-2024-13557
Published
Mar 29, 2025
Updated
Apr 8, 2026
Vendor
United Themes
Product
Shortcodes by United Themes
Classifications
CWE-94, CAPEC-242, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 <=5.1.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

United Themes · Shortcodes by United Themesversion=0 <=5.1.6

Published CVSS scores

6.5WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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-94Improper Control of Generation of Code ('Code Injection')
CAPEC-242Code Injection
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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