CVE-2020-5616

9.8 CRITICAL 3% exploit odds No fix listed Auth & access Web app

What it is

[Calendar01], [Calendar02], [PKOBO-News01], [PKOBO-vote01], [Telop01], [Gallery01], [CalendarForm01], and [Link01] [Calendar01] free edition ver1.0.0, [Calendar02] free edition ver1.0.0, [PKOBO-News01] free edition ver1.0.3 and earlier, [PKOBO-vote01] free edition ver1.0.1 and earlier, [Telop01] free edition ver1.0.0, [Gallery01] free edition ver1.0.3 and earlier, [CalendarForm01] free edition ver1.0.3 and earlier, and [Link01] free edition ver1.0.0 allows remote attackers to bypass authentication and log in to the product with administrative privileges via unspecified vectors.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 3.1% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2020-01-06 00:00 UTC ReservedThe CVE id was reserved by its CNA
2020-08-04 02:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:21 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 3.1% in the next 30 days (EPSS).
Severity: 9.8 CRITICAL (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2020-08-04 02:15 UTC
Last modified: 2026-06-17 03:21 UTC
Exploit probability: 3.1% · EPSS, next 30 days
Weakness: CWE-287 · Improper authentication
Record status: Modified

Affected

calendar01 Project calendar01 1.0.0
calendar02 Project calendar02 1.0.0
calendarform01 Project calendarform01 ≤ 1.0.3
gallery01 Project gallery01 ≤ 1.0.3
link01 Project link01 1.0.0
pkobo-news01 Project pkobo-news01 ≤ 1.0.3
pkobo-vote01 Project pkobo-vote01 ≤ 1.0.1
telop01 Project telop01 1.0.0

Attack profile CVSS 3.1 · 9.8

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-5616.md and follow it. Check whether this project is affected by CVE-2020-5616. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record