CVE-2024-4531Public exploitNetwork attack vector

Card editing via missing CSRF nonce validation

Published May 27, 2024 · Updated Aug 1, 2024

Cross-site request forgery in Esterox Business Card 1.0.0 and earlier allows remote attackers to edit cards through a forged request. The card-edit handler at wp-admin/admin.php?page=es-bcard-options accepts POSTed img_data and edit values without validating a CSRF nonce. Exploitation requires an administrator with an active session to open attacker-controlled HTML, after which the forged request changes the selected card.

CVSS severity7.1
High
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

Cross-site request forgery in Esterox Business Card 1.0.0 and earlier allows remote attackers to edit cards through a forged request. The card-edit handler at wp-admin/admin.php?page=es-bcard-options accepts POSTed img_data and edit values without validating a CSRF nonce. Exploitation requires an administrator with an active session to open attacker-controlled HTML, after which the forged request changes the selected card.

The record

CVE
CVE-2024-4531
Published
May 27, 2024
Updated
Aug 1, 2024
Vendor
Esterox
Product
Business Card
Classifications
CWE-352, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 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 <=1.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Esterox · Business Cardversion=0 <=1.0.0

Published CVSS scores

7.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
4.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
T1204.002Malicious File

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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