CVE-2023-35044Network attack vector

Plugin option modification via missing nonce validation

Published Jul 11, 2023 · Updated Apr 28, 2026

Cross-site request forgery in Drew Phillips Securimage-WP 3.6.16 and earlier allows remote attackers to modify plugin options. The siwp_plugin_options() function accepts state-changing requests without validating a WordPress nonce. Exploitation requires an authenticated site administrator to visit or submit attacker-controlled content, and the bounded consequence is unauthorized changes to several CAPTCHA settings.

CVSS severity4.3
Medium
EPSS probability0.22%
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 Drew Phillips Securimage-WP 3.6.16 and earlier allows remote attackers to modify plugin options. The siwp_plugin_options() function accepts state-changing requests without validating a WordPress nonce. Exploitation requires an authenticated site administrator to visit or submit attacker-controlled content, and the bounded consequence is unauthorized changes to several CAPTCHA settings.

The record

CVE
CVE-2023-35044
Published
Jul 11, 2023
Updated
Apr 28, 2026
Vendor
Drew Phillips
Product
Securimage-WP
Classifications
CWE-352, CAPEC-62
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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=n/a <=3.6.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Drew Phillips · Securimage-WPversion=n/a <=3.6.16

Published CVSS scores

4.3PatchstackCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CAPEC-62Cross Site Request Forgery

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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