CVE-2026-3424Network attack vector

Unauthenticated shortcode execution via unvalidated rating payload

Published Aug 22, 2026 · Updated Aug 22, 2026

Code injection in Proper Fraction kk Star Ratings 5.4.10.3 and earlier allows remote attackers to execute registered WordPress shortcodes. The unauthenticated rating action passes the attacker-controlled payload parameter to do_shortcode without restricting its shortcode tags. Any visitor can invoke handlers registered by WordPress or installed plugins, so the resulting effect depends on the available shortcodes.

CVSS severity5.3
Medium
EPSS probability0.39%
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 Proper Fraction kk Star Ratings 5.4.10.3 and earlier allows remote attackers to execute registered WordPress shortcodes. The unauthenticated rating action passes the attacker-controlled payload parameter to do_shortcode without restricting its shortcode tags. Any visitor can invoke handlers registered by WordPress or installed plugins, so the resulting effect depends on the available shortcodes.

The record

CVE
CVE-2026-3424
Published
Aug 22, 2026
Updated
Aug 22, 2026
Vendor
ProfilePress Membership Team
Product
kk Star Ratings
Classifications
CWE-94, CAPEC-242, CAPEC-77, CAPEC-35, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 22, 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 <=5.4.10.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ProfilePress Membership Team · kk Star Ratingsversion=0 <=5.4.10.3

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.

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
CAPEC-77Manipulating User-Controlled Variables
CAPEC-35Leverage Executable Code in Non-Executable Files
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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