CVE-2024-3919Public exploitNetwork attack vector

Stored XSS via unescaped shortcode style attribute

Published Jul 13, 2024 · Updated Aug 1, 2024

Stored XSS in OpenPGP Form Encryption for WordPress before 1.5.1 allows remote authenticated users to execute scripts via a shortcode. The cryptbutton shortcode writes its style attribute into button markup without validation or output escaping, so a quote can introduce an event handler. Contributor access and Jetpack or Contact Form 7 are required; the script runs when a visitor views and interacts with the crafted post.

CVSS severity4.6
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in OpenPGP Form Encryption for WordPress before 1.5.1 allows remote authenticated users to execute scripts via a shortcode. The cryptbutton shortcode writes its style attribute into button markup without validation or output escaping, so a quote can introduce an event handler. Contributor access and Jetpack or Contact Form 7 are required; the script runs when a visitor views and interacts with the crafted post.

The record

CVE
CVE-2024-3919
Published
Jul 13, 2024
Updated
Aug 1, 2024
Vendor
Erik L. Arneson
Product
OpenPGP Form Encryption for WordPress
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record 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 <1.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Erik L. Arneson · OpenPGP Form Encryption for WordPressversion=0 <1.5.1

Published CVSS scores

4.6CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter JavaScript

Public exploit references

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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