CVE-2024-12421Network attack vector

Unauthenticated shortcode execution via unchecked action value

Published Dec 13, 2024 · Updated Apr 8, 2026

Code injection in RelyWP Coupon Affiliates 5.16.7.1 and earlier allows remote attackers to execute arbitrary WordPress shortcodes. An unauthenticated action passes an insufficiently validated value to do_shortcode in inc/functions/functions-user-coupons.php, expanding attacker-supplied shortcode syntax and reflecting the resulting content. No account or user interaction is required; effects are limited to functionality exposed by installed shortcodes, including reflected script output.

CVSS severity6.5
Medium
EPSS probability0.48%
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 RelyWP Coupon Affiliates 5.16.7.1 and earlier allows remote attackers to execute arbitrary WordPress shortcodes. An unauthenticated action passes an insufficiently validated value to do_shortcode in inc/functions/functions-user-coupons.php, expanding attacker-supplied shortcode syntax and reflecting the resulting content. No account or user interaction is required; effects are limited to functionality exposed by installed shortcodes, including reflected script output.

The record

CVE
CVE-2024-12421
Published
Dec 13, 2024
Updated
Apr 8, 2026
Vendor
RelyWP
Product
Coupon Affiliates
Classifications
CWE-94, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 13, 2024CVE 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 <=5.16.7.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

RelyWP · Coupon Affiliatesversion=0 <=5.16.7.1

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')
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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