CVE-2021-24917Public exploitNetwork attack vector

Hidden login disclosure via Referer-triggered redirect

Published Dec 6, 2021 · Updated Aug 3, 2024

Incorrect authorization in WPServeur WPS Hide Login before 1.9.1 allows remote attackers to discover the hidden login URL. An unauthenticated request to /wp-admin/options.php with an arbitrary Referer causes the plugin's redirect response to place the configured secret login path in the Location header. The disclosure does not authenticate the attacker or change site data, but it removes the access-control benefit of concealing the login endpoint.

CVSS severity5.3
Medium
EPSS probability71.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in WPServeur WPS Hide Login before 1.9.1 allows remote attackers to discover the hidden login URL. An unauthenticated request to /wp-admin/options.php with an arbitrary Referer causes the plugin's redirect response to place the configured secret login path in the Location header. The disclosure does not authenticate the attacker or change site data, but it removes the access-control benefit of concealing the login endpoint.

The record

CVE
CVE-2021-24917
Published
Dec 6, 2021
Updated
Aug 3, 2024
Vendor
WPServeur
Product
WPS Hide Login
Classifications
CWE-863
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 6, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=1.9.1 <1.9.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WPServeur · WPS Hide Loginversion=1.9.1 <1.9.1

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

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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-863Incorrect Authorization

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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