CVE-2024-13339Network attack vector

Stored script injection via missing settings nonce

Published Feb 19, 2025 · Updated Apr 8, 2026

CSRF in DeBounce Email Validator 5.8.0 and earlier allows remote attackers to store malicious scripts through a forged settings request. The debounce_email_validator settings page accepts configuration updates without correctly validating a WordPress nonce, allowing attacker-supplied script content to persist. Exploitation requires an administrator to trigger the forged request, after which the injected script executes when affected content is viewed in a browser.

CVSS severity6.1
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF in DeBounce Email Validator 5.8.0 and earlier allows remote attackers to store malicious scripts through a forged settings request. The debounce_email_validator settings page accepts configuration updates without correctly validating a WordPress nonce, allowing attacker-supplied script content to persist. Exploitation requires an administrator to trigger the forged request, after which the injected script executes when affected content is viewed in a browser.

The record

CVE
CVE-2024-13339
Published
Feb 19, 2025
Updated
Apr 8, 2026
Vendor
DeBounce
Product
DeBounce Email Validator
Classifications
CWE-352, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 19, 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 <=5.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

DeBounce · DeBounce Email Validatorversion=0 <=5.8.0

Published CVSS scores

6.1WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1204.001Malicious Link

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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