CVE-2024-6641Network attack vector

Unauthenticated username disclosure via incorrect enumeration regex

Published Sep 18, 2024 · Updated Apr 8, 2026

Security feature bypass in Astra Security WP Hardening 1.2.6 and earlier allows remote attackers to expose WordPress usernames. The Stop User Enumeration feature uses an incorrect regular expression that fails to block some author-enumeration requests. No authentication or user interaction is required, but the feature must be enabled; the result is username disclosure only.

CVSS severity5.3
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Security feature bypass in Astra Security WP Hardening 1.2.6 and earlier allows remote attackers to expose WordPress usernames. The Stop User Enumeration feature uses an incorrect regular expression that fails to block some author-enumeration requests. No authentication or user interaction is required, but the feature must be enabled; the result is username disclosure only.

The record

CVE
CVE-2024-6641
Published
Sep 18, 2024
Updated
Apr 8, 2026
Vendor
Astra Security
Product
WP Hardening
Classifications
CWE-185, T1087
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 18, 2024CVE 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 <=1.2.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Astra Security · WP Hardeningversion=0 <=1.2.6

Published CVSS scores

5.3WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-185Incorrect Regular Expression
T1087Account Discovery

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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