CVE-2025-61783
CVE-2025-61783 is a medium-severity vulnerability with a CVSS 4.0 base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-303.
Key facts
- Severity: Medium (CVSS 4.0 base score 6.3)
- EPSS exploit prediction: 1% (40th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-33405
- Weakness: CWE-303
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2025-61783?
- 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.
- How severe is CVE-2025-61783?
- CVE-2025-61783 has a CVSS 4.0 base score of 6.3, rated medium severity.
- Is CVE-2025-61783 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-61783?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-61783 have an EU (EUVD) identifier?
- Yes. CVE-2025-61783 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-33405.
- When was CVE-2025-61783 published?
- CVE-2025-61783 was published on 2025-10-09 and last updated on 2026-06-17.
References
- https://github.com/python-social-auth/social-app-django/commit/10c80e2ebabeccd4e9c84ad0e16e1db74148ed4c
- https://github.com/python-social-auth/social-app-django/issues/220
- https://github.com/python-social-auth/social-app-django/issues/231
- https://github.com/python-social-auth/social-app-django/issues/634
- https://github.com/python-social-auth/social-app-django/pull/803
- https://github.com/python-social-auth/social-app-django/security/advisories/GHSA-wv4w-6qv2-qqfg
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