What’s Vulnerable › Vulnerabilities

CVE-2021-47824: iDailyDiary 4.30 - Denial of Service (PoC)

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-16 · updated 2026-06-17
• Weakness: CWE-1284

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.

Affected products

• Splinterware iDailyDiary: 4.30

References

• https://www.exploit-db.com/exploits/49898
• https://www.splinterware.com/index.html
• https://www.vulncheck.com/advisories/idailydiary-denial-of-service-poc

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