python-social-auth social-app-django up to 5.5.x Authentication Service associate_by_email incorrect implementation of authentication algorithm

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in python-social-auth social-app-django up to 5.5.x. It has been rated as problematic. The affected element is the function associate_by_email of the component Authentication Service Handler. This manipulation causes incorrect implementation of authentication algorithm. This vulnerability is tracked as CVE-2025-61783. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in python-social-auth social-app-django up to 5.5.x. Affected by this vulnerability is the function associate_by_email of the component Authentication Service Handler. The manipulation with an unknown input leads to a incorrect implementation of authentication algorithm vulnerability. The CWE definition for the vulnerability is CWE-303. The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Python Social Auth is a social authentication/registration mechanism. In versions prior to 5.6.0, upon authentication, the user could be associated by e-mail even if the `associate_by_email` pipeline was not included. This could lead to account compromise when a third-party authentication service does not validate provided e-mail addresses or doesn't require unique e-mail addresses. Version 5.6.0 contains a patch. As a workaround, review the authentication service policy on e-mail addresses; many will not allow exploiting this vulnerability.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-61783 since 09/30/2025. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

Upgrading to version 5.6.0 eliminates this vulnerability. Applying the patch 10c80e2ebabeccd4e9c84ad0e16e1db74148ed4c is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Incorrect implementation of authentication algorithm
CWE: CWE-303
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: social-app-django 5.6.0
Patch: 10c80e2ebabeccd4e9c84ad0e16e1db74148ed4c

Timelineinfo

09/30/2025 CVE reserved
10/10/2025 +10 days Advisory disclosed
10/10/2025 +0 days VulDB entry created
10/10/2025 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 220
Status: Confirmed

CVE: CVE-2025-61783 (🔒)
GCVE (CVE): GCVE-0-2025-61783
GCVE (VulDB): GCVE-100-327817

Entryinfo

Created: 10/10/2025 08:29
Changes: 10/10/2025 08:29 (71)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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