An issue was discovered in MediaWiki before 1.35.9, 1.36.x through 1.38.x before 1.38.5, and 1.39.x before 1.39.1. CheckUser TokenManager insecurely uses AES-CTR encryption with a repeated (aka re-used) nonce, allowing an adversary to decrypt.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Mediawiki | — | Upgrade MediaWiki to the latest version | Jan 30, 2023 | Jan 20, 2023 |
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