| user: | nullcathedral |
| created: | December 12, 2025 |
| karma: | 105 |
| about: | hn username @ hn username dot com happy to discuss infosec, vulndev, etc. There’s apparently a generative AI “artist” using the same name. We’re not related. |
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| 3. | Perfex CRM: Unauthenticated RCE via PHP's S: deserialization format(nullcathedral.com) |
| 4. | Roundcube Webmail: SVG feImage bypasses image blocking to track email opens(nullcathedral.com) |