CVE-2023-23711Network attack vector

Data-collection enablement via missing nonce validation

Published Mar 13, 2023 · Updated Apr 28, 2026

CSRF in A2 Hosting A2 Optimized WP 3.0.4 and earlier allows remote attackers to enable developer data collection via forged requests. The admin_pagespeed_page function accepts the state-changing request without nonce validation. Exploitation requires an administrator with an active session to open attacker-controlled content; the documented effect is limited to enabling plugin-developer data collection.

CVSS severity4.3
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF in A2 Hosting A2 Optimized WP 3.0.4 and earlier allows remote attackers to enable developer data collection via forged requests. The admin_pagespeed_page function accepts the state-changing request without nonce validation. Exploitation requires an administrator with an active session to open attacker-controlled content; the documented effect is limited to enabling plugin-developer data collection.

The record

CVE
CVE-2023-23711
Published
Mar 13, 2023
Updated
Apr 28, 2026
Vendor
A2 Hosting
Product
A2 Optimized WP
Classifications
CWE-352, CAPEC-62
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 13, 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 <=3.0.4 changes=[{"at":"3.0.5","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

A2 Hosting · A2 Optimized WPversion=n/a <=3.0.4 changes=[{"at":"3.0.5","status":"unaffected"}]

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.

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)
CAPEC-62Cross Site Request Forgery

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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