Hack history / 2025 / Hack or exploit
FixedTokenBSwap
Hack or exploit on Jun 15, 2025 · Spot Price Manipulation
ATTACK TX CONFIRMED ON CHAINSOURCES AGREE ON DATE AND LOSS · 2 SOURCES
Lost
$2K
dollars at the time
Returned
none listed
as the sources state it
Rank
#2,395
among thefts by dollars lost
What happened
FixedTokenBSwap swap contract was exploited on June 15, 2025 via attacker-supplied path parameters combined with a fake token's transferFrom bypass, circumventing the on-chain price check and allowing extraction of fixed RTV amounts per transaction.
Details
- Date
- Jun 15, 2025
- Kind
- Hack or exploit
- Method
- Spot Price Manipulation
- How in
- Price, oracle and governance
- Target
- DeFi protocol
- Chains
- Ethereum
Reported by
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Cite this page
SwanBluechip, "FixedTokenBSwap hack, Jun 15, 2025: $2K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/htc484f1e655/ (data as of 2026-10-31).