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CVE-2025-64725

CVE-2025-64725: Weblate has improper validation upon invitation acceptance

Impact

It was possible to accept an invitation opened by a different Weblate user.

Patches

https://github.com/WeblateOrg/weblate/pull/16913

Workarounds

Users should avoid leaving Weblate sessions with an unattended opened invitation.

References

Thanks to Nahid0x for responsibly disclosing this vulnerability to Weblate.

(GitHub Advisory)

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CVE-2025-64725

CVE-2025-64725:

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
Weblate	pip	< 5.15	5.15

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The analysis of the provided patch reveals a vulnerability in the InvitationView.post method within weblate/auth/views.py. The commit message "fix: validate invitation while accepting. The validation was only done in GET, but not on POST." explicitly states the flaw. The code changes confirm this: the validation logic, which checks if the invitation is meant for the currently authenticated user, was originally only in the get method. The patch extracts this logic into a new validate_invitation method and adds a call to it in the post method. This indicates that prior to the patch, an attacker could bypass the validation in the get method by directly sending a POST request to accept an invitation belonging to another user. Therefore, the InvitationView.post function is identified as the vulnerable function.

Vulnerable functions

InvitationView.post

weblate/auth/views.py

The vulnerability lies in the `post` method of the `InvitationView` class. Before the patch, this method lacked proper validation to ensure that the user accepting the invitation was the intended recipient. The `get` method had some validation, but the `post` method, which processes the acceptance of the invitation, did not. This allowed a logged-in user to accept an invitation intended for another user by sending a POST request to the invitation URL. The patch fixes this by adding a call to the `validate_invitation` method, which centralizes the validation logic and is called from both `get` and `post` methods.

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WAF Protection Rules

WAF Rule

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Reasoning

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CVE-2025-64725: Weblate has improper validation upon invitation acceptance

Impact

Patches

Workarounds

References

CVE-2025-64725:

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Technical Details

Technical Details

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Root Cause Analysis

Vulnerable functions

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WAF Protection Rules

WAF Rule

Reasoning

Technical Details

Basic Information

Basic Information

CVE-2025-64725: Weblate has improper validation upon invitation acceptance

Impact

Patches

Workarounds

References

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

N/A

N/A

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