iDailyDiary 4.30 - Denial of Service (PoC) | Advisories

Advisories

iDailyDiary 4.30 - Denial of Service (PoC)

severity: medium
date: January 16, 2026
Affecting: iDailyDiary 4.30
CVE: CVE-2021-47824
CWE: CWE-1284 Improper Validation of Specified Quantity in Input
CVSS: 4.6
CVSS V4 Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
References: ExploitDB-49898
Vendor Homepage
Credit: Ismael Nava
Description: iDailyDiary 4.30 contains a denial of service vulnerability that allows attackers to crash the application by overflowing the preferences tab name field. Attackers can paste a 2,000,000 character buffer into the default diary tab name to trigger an application crash.