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In Horde_Crypt before 2.7.6, as used in Horde Groupware Webmail Edition through 5.2.17, OS Command Injection can occur if the attacker is an authenticated Horde Webmail user, has PGP features enabled in their preferences, and attempts to encrypt an email addressed to a maliciously crafted email address.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade php-horde-crypt | Feb 19, 2019 | Apr 4, 2017 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Apr 4, 2017 |
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