CVE-2025-61783Public exploitNetwork attack vector

Account takeover via failed-user-creation fallback

Published Oct 9, 2025 · Updated Oct 9, 2025

Authentication bypass in Python Social Auth social-auth-app-django before 5.6.0 allows remote attackers to take over existing accounts. The social_django.storage UserSocialAuth.create_user method catches a database IntegrityError and returns the existing user matching supplied attributes instead of failing, bypassing the configured pipeline's omission of associate_by_email. Exploitation requires an identity provider that accepts an unverified or non-unique email matching a local account; success grants that account's application access.

CVSS severity6.3
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Python Social Auth social-auth-app-django before 5.6.0 allows remote attackers to take over existing accounts. The social_django.storage UserSocialAuth.create_user method catches a database IntegrityError and returns the existing user matching supplied attributes instead of failing, bypassing the configured pipeline's omission of associate_by_email. Exploitation requires an identity provider that accepts an unverified or non-unique email matching a local account; success grants that account's application access.

The record

CVE
CVE-2025-61783
Published
Oct 9, 2025
Updated
Oct 9, 2025
Vendor
Python Social Auth
Product
social-auth-app-django
Classifications
CWE-303, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 9, 2025Record 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=< 5.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Python Social Auth · social-auth-app-djangoversion=< 5.6.0

Published CVSS scores

6.3GitHub, Inc.CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA: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 exploitPublished

Weakness, pattern, technique

CWE-303Incorrect Implementation of Authentication Algorithm
T1078Valid Accounts

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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