CVE-2026-27949: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in makeplane plane
CVE-2026-27949 is a low-severity vulnerability in the open-source project management tool Plane prior to version 1. 3. 0. The issue involves exposure of a user's email address as a query parameter in the URL during error handling in the authentication flow, specifically when an invalid magic code is submitted. This practice of transmitting personally identifiable information (PII) via GET request query strings is considered insecure design. The vulnerability is fixed in Plane version 1. 3. 0.
AI Analysis
Technical Summary
Plane versions before 1.3.0 contain a vulnerability in the authentication utility module where a user's email address is included in the URL query string during error handling, such as when an invalid magic code is submitted. This leads to exposure of sensitive information (CWE-200) due to insecure design (CWE-598). The vulnerability is addressed and fixed in version 1.3.0 of Plane.
Potential Impact
The vulnerability results in the exposure of a user's email address in URLs during authentication error handling. This could allow unauthorized actors who can observe URLs (e.g., via browser history, logs, or network traffic) to access personally identifiable information. The CVSS score is low (2.0), indicating limited impact primarily related to confidentiality with no direct impact on integrity or availability.
Mitigation Recommendations
Upgrade Plane to version 1.3.0 or later, where this vulnerability has been fixed. Since the vendor has released a fixed version, applying this official update is the recommended remediation. No additional mitigation steps are indicated.
CVE-2026-27949: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in makeplane plane
Description
CVE-2026-27949 is a low-severity vulnerability in the open-source project management tool Plane prior to version 1. 3. 0. The issue involves exposure of a user's email address as a query parameter in the URL during error handling in the authentication flow, specifically when an invalid magic code is submitted. This practice of transmitting personally identifiable information (PII) via GET request query strings is considered insecure design. The vulnerability is fixed in Plane version 1. 3. 0.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Plane versions before 1.3.0 contain a vulnerability in the authentication utility module where a user's email address is included in the URL query string during error handling, such as when an invalid magic code is submitted. This leads to exposure of sensitive information (CWE-200) due to insecure design (CWE-598). The vulnerability is addressed and fixed in version 1.3.0 of Plane.
Potential Impact
The vulnerability results in the exposure of a user's email address in URLs during authentication error handling. This could allow unauthorized actors who can observe URLs (e.g., via browser history, logs, or network traffic) to access personally identifiable information. The CVSS score is low (2.0), indicating limited impact primarily related to confidentiality with no direct impact on integrity or availability.
Mitigation Recommendations
Upgrade Plane to version 1.3.0 or later, where this vulnerability has been fixed. Since the vendor has released a fixed version, applying this official update is the recommended remediation. No additional mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-02-25T03:11:36.690Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d5874b43e2781bad84eafd
Added to database: 4/7/2026, 10:38:03 PM
Last enriched: 4/15/2026, 3:54:06 PM
Last updated: 5/23/2026, 10:44:13 AM
Views: 104
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