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### Summary A malicious JSON-stringifyable message can be made passing on `verify()`, when global Buffer is [`buffer` package](https://www.npmjs.com/package/buffer) ### Details This affects only environments where `require('buffer')` is <https://npmjs.com/buffer> E.g.: browser bundles, React Native apps, etc. `Buffer.isBuffer` check can be bypassed, resulting in strange objects being accepted as `message`, and those messages could trick `verify()` into returning false-positive `true` values v2.x is unaffected as it verifies input to be an actual `Uint8Array` instance Such a message can be constructed for any already known message/signature pair There are some restrictions though (also depending on the known message/signature), but not very limiting, see PoC for example https://github.com/bitcoinjs/tiny-secp256k1/pull/140 is a subtle fix for this ### PoC This code deliberately doesn't provide `reencode` for now, could be updated later ```js import { randomBytes } from 'crypto'...

### Summary Private key can be extracted on signing a malicious JSON-stringifiable object, when global Buffer is [`buffer` package](https://www.npmjs.com/package/buffer) ### Details This affects only environments where `require('buffer')` is <https://npmjs.com/buffer> E.g.: browser bundles, React Native apps, etc. `Buffer.isBuffer` check can be bypassed, resulting in `k` reuse for different messages, leading to private key extraction over a single invalid message (and a second one for which any message/signature could be taken, e.g. previously known valid one) v2.x is unaffected as it verifies input to be an actual `Uint8Array` instance Such a message can be constructed for any already known message/signature pair, meaning that the attack needs only a single malicious message being signed for a full key extraction While signing unverified attacker-controlled messages would be problematic itself (and exploitation of this needs such a scenario), signing a single message still shou...

The threat actor known as Blind Eagle has been attributed with high confidence to the use of the Russian bulletproof hosting service Proton66. Trustwave SpiderLabs, in a report published last week, said it was able to make this connection by pivoting from Proton66-linked digital assets, leading to the discovery of an active threat cluster that leverages Visual Basic Script (VBS) files as its

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### Summary Arbitrary HTML can be inserted into the DOM by inserting a payload into any allowed attribute of the `<tabber>` tag. ### Details The `args` provided within the wikitext as attributes to the `<tabber>` tag are passed to the TabberComponentTabs class: https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/3a23b703ce36cfc4128e7921841f68230be4059a/includes/Tabber.php#L76 In TabberComponentTabs, the attributes are validated before being supplied to the Tabs template. https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/blob/3a23b703ce36cfc4128e7921841f68230be4059a/includes/Components/TabberComponentTabs.php#L15-L31 However, the validation is insufficient. What `Sanitizer::validateTagAttributes` does is call `validateAttributes`, which ``` * - Discards attributes not on the given list * - Unsafe style attributes are discarded * - Invalid id attributes are re-encoded ``` However, the attribute values are expected to be escaped when inserte...