[In] ShowDoc version before 2.8.7, an unrestricted and unauthenticated file upload issue is found and [an] attacker is able to upload a web shell and execute arbitrary code on server.
Uncle Sam's cyber defenders have given federal agencies just three days to patch a maximum-severity Dell bug that's been under active exploitation since at least mid-2024. CISA this week added the flaw, tracked as CVE-2026-22769, to its Known Exploited Vulnerabilities catalog, ordering civilian agencies to secure affected systems by February 21 - giving them just three days to get fixes in place.