Temporary Login Plugin 0.x on WordPress GET maybe_login_temporary_user authentication bypass

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Temporary Login Plugin 0.x on WordPress. This issue affects the function maybe_login_temporary_user of the component GET Handler. The manipulation leads to authentication bypass. This vulnerability is documented as CVE-2026-7567. The attack can be initiated remotely. Additionally, an exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Temporary Login Plugin 0.x on WordPress. This issue affects the function maybe_login_temporary_user of the component GET Handler. The manipulation with an unknown input leads to a authentication bypass vulnerability. Using CWE to declare the problem leads to CWE-288. A product requires authentication, but the product has an alternate path or channel that does not require authentication. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The Temporary Login plugin for WordPress is vulnerable to Authentication Bypass in versions up to and including 1.0.0. This is due to improper input validation in the maybe_login_temporary_user() function, which fails to verify that the 'temp-login-token' GET parameter is a scalar string before processing it. When the parameter is supplied as an array, PHP's empty() check is bypassed and sanitize_key() returns an empty string, which is then passed as the meta_value to get_users(). WordPress ignores an empty meta_value and returns all users matching the meta_key '_temporary_login_token', allowing authentication without a valid token. This makes it possible for unauthenticated attackers to authenticate as any active temporary login user by sending a single crafted GET request.

The weakness was released by Tang Cheuk Hei. It is possible to read the advisory at wordfence.com. The identification of this vulnerability is CVE-2026-7567 since 04/30/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

Upgrading to version 1.0.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (52575). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (Wordfence): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authentication bypass
CWE: CWE-288 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Exploit-DB: 🔒

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Temporary Login Plugin 1.0.0

Timelineinfo

04/30/2026 CVE reserved
05/01/2026 +1 days Advisory disclosed
05/01/2026 +0 days VulDB entry created
05/27/2026 +26 days VulDB entry last update

Sourcesinfo

Advisory: wordfence.com
Researcher: Tang Cheuk Hei
Status: Confirmed

CVE: CVE-2026-7567 (🔒)
GCVE (CVE): GCVE-0-2026-7567
GCVE (VulDB): GCVE-100-360551
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/01/2026 12:28
Updated: 05/27/2026 14:25
Changes: 05/01/2026 12:28 (67), 05/27/2026 14:25 (11)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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