CVE-2023-2733

The MStore API plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 3.9.0. This is due to insufficient verification on the user being supplied during the coupon redemption REST API request through the plugin. This makes it possible for unauthenticated...

CVE-2023-2733

The MStore API plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 3.9.0. This is due to insufficient verification on the user being supplied during the coupon redemption REST API request through the plugin. This makes it possible for unauthenticated...

Authentication flaw

The MStore API plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 3.9.0. This is due to insufficient verification on the user being supplied during the coupon redemption REST API request through the plugin. This makes it possible for unauthenticated...

CVE-2023-2733 MStore API <= 3.9.0 - Authentication Bypass

The MStore API plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 3.9.0. This is due to insufficient verification on the user being supplied during the coupon redemption REST API request through the plugin. This makes it possible for unauthenticated...

Borrower can redeem there collateral without repaying debt completely

Lines of code Vulnerability details Impact A borrower can redeem token in a pool though it has been used as a collateral in another pool without repaying the debt. Borrower can redeem the token as underlying asset even if his/her loan position is in the situation of liquidation. Proof of Concept...

Malicious user can force victims to waste a lot of gas when they redeem their dMute

Lines of code Vulnerability details Proof of Concept When redeeming, the user must iterate through all the elements of userLock to destroy any redeemed locks. foruint256 i = userLocksmsg.sender.length; i 0; i-- UserLockInfo memory lockinfo = userLocksmsg.senderi - 1; // recently redeemed lock,...

Redemption fee increase can be thwarted

Lines of code Vulnerability details Impact The mechanism to increase the baseRate during redemptions is moot, up to gas fees. Therefore an arbitrageur can redeem more than what is healthy for the supply of LUSD. This weakens the price floor at $1, and may cause needless volatility. It further...

Governance can cap the outflow of funds significantly preventing user redemptions

Lines of code Vulnerability details Impact The Reserve protocol always intends to allows free outflow of rToken collaterals. The redemption of rToken is allowed even when the protocol is paused. A Throttle mechanism is in place to just limit the outflow of funds from the contract. However the...

Mitigation of M-03: Issue not fully mitigated

Lines of code Vulnerability details Original issue: M-03: Baited by redemption during undercollateralization no issuance, just transfer Explanation This is basically a dupe of M-04 as commented by the judge, I elaborated on this on the M-04 mitigation. TL;DR - using a boolean parameter to agree t...

Attacker can temporary deplete available redemption/issuance by running issuance then redemption or vice versa

Lines of code Vulnerability details Impact Attacker can deplete available issuance or redemption by first issuing and then redeeming in the same tx or vice versa. The available redemption/issuance will eventually grow back, but this temporary reduces the available amount. This can also use to fro...

Battery discharge mechanism doesn't work correctly for first redemption

Lines of code Vulnerability details Impact The RTokenP1 contract implements a throttling mechanism using the RedemptionBatteryLib library. The library models a "battery" which "recharges" linearly block by block, over roughly 1 hour. RToken.sol function redeemuint256 amount external notFrozen //...

Redemptions during undercollateralization can be hot-swapped to steal all funds

Lines of code Vulnerability details Impact During recollateralization/a switch basket/when the protocol collateral isn't sound, a user can have almost their entire redemption transaction hot swapped for nothing. For example, trying to redeem 1M collateral for 1M rTokens could have the user end up...

Possible Unauthorized Redemption of Collateral ERC20 Tokens due to Lack of Proper Check in redeem() Function

Lines of code Vulnerability details Impact An attacker who is not authorized by the smart contract could potentially redeem more tokens than they are entitled to. This could cause a loss of funds for the smart contract and its users, as well as potentially destabilizing the overall ecosystem...

Baited by redemption during undercollateralization (no issuance, just transfer)

Lines of code Vulnerability details Impact This is similar to the "high" vulnerability I submitted, but also shows a similar exploit can be done if a user isn't a whale, and isn't issuing anything. A user can send a redeem TX and an evil actor can make it so they get almost nothing back during...

Redeemers will receive less collateral than expected if function completeRedemptions() is called with empty refundees list

Lines of code Vulnerability details Impact Function completeRedemptions is used by admin account to distribute collateral to users and also to refund redemption requests if the redemption cannot be serviced. function completeRedemptions address calldata redeemers, address calldata refundees,...

Liquidation bots are needed to stabilize the system.

Lines of code Vulnerability details Impact Allowing liquidation bots to arbitrage would stabilize the system. The majority of liquidations are done by liquidation bots. For liquidation bots to be viable there has to exist a secondary market where the assets can be instantly sold. This is especial...

Wrong logic totalBurned is not updated after _processRefund() results in loss of funds for redeemers

Lines of code Vulnerability details Impact Function completeRedemptions is used by admin account to distribute collateral to users and also to refund redemption requests if the redemption cannot be serviced. function completeRedemptions address calldata redeemers, address calldata refundees,...

Anyone can be refunded; no input validation

Lines of code Vulnerability details Impact The method for processing refunds has no input validation. If Bob burns 100 CASH and Alice burns 1 CASH, and the manager wants to refund Alice and pay out Bob, they are able to swap the refund parameters. This would result in Alice getting the entire...

The Equifax Breach Settlement Offer is Real, For Now

Millions of people likely just received an email or snail mail notice saying theyre eligible to claim a class action payment in connection with the 2017 megabreach at consumer credit bureau Equifax. Given the high volume of reader inquiries about this, it seemed worth pointing out that while this...

Irrelevant error message from PrePOMarket.redeem() worries users

Lines of code Vulnerability details Impact Users may receive error messages fee = 0 whenever making a redemption from PrePOMarket contract if the redemption amout is not enough. The error message is irrelevant to users. It's related to the protocol processing the redemption. If a user receives...