security: require POST for org team and member actions#8321
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The team and member action endpoints accepted GET, so a logged-in org owner who followed a crafted link could be made to add an attacker to the Owners team without any further interaction. These routes are now POST-only, and the templates that triggered them via <a href> have been converted to inline POST forms.
unknwon
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Jun 7, 2026
(cherry picked from commit 070df61)
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Summary
Organization team and member management routes accepted GET requests, allowing state-changing operations (add, remove, leave, join, public/private toggle) to be triggered via top-level navigation. A logged-in organization owner could be tricked into following a crafted link that added an attacker to the Owners team. These endpoints now require POST, and the corresponding templates submit POST forms instead of issuing GET requests via
<a href>.Fixes GHSA-pwx3-qcgw-vh7h.
Test plan