What’s Vulnerable › Vulnerabilities

CVE-2020-5539

• Severity: medium (CVSS 6.5 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: 2020-03-02 · updated 2026-06-17
• Weakness: CWE-639

Description

GRANDIT Ver.1.6, Ver.2.0, Ver.2.1, Ver.2.2, Ver.2.3, and Ver.3.0 do not properly manage sessions, which allows remote attackers to impersonate an arbitrary user and then alter or disclose the information via unspecified vectors.

Affected products

• GRANDIT CORPORATION GRANDIT: 1.6, 2.0, 2.1, 2.2, 2.3, 3.0

References

• https://jvn.jp/en/jp/JVN73472345/index.html
• https://www.grandit.jp/etc/20200228_letter.pdf
• https://jvn.jp/en/jp/JVN73472345/index.html
• https://www.grandit.jp/etc/20200228_letter.pdf

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