What’s Vulnerable › Vulnerabilities

CVE-2021-20725

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-05-24 · updated 2026-06-17
• Weakness: CWE-79

Description

Reflected cross-site scripting vulnerability in the admin page of [Calendar01] free edition ver1.0.1 and earlier allows a remote attacker to inject an arbitrary script via unspecified vectors.

Affected products

• PHP Factory [Calendar01] free edition: through 1.0.1

References

• https://jvn.jp/en/jp/JVN53910556/index.html
• https://www.php-factory.net/calendar/01.php
• https://jvn.jp/en/jp/JVN53910556/index.html
• https://www.php-factory.net/calendar/01.php

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