CVE-2020-27509

5.4 mediumEPSS 0.6%

Medium (5.4) in galaxkey galaxkey. EPSS 0.6% chance of exploitation in the next 30 days.

Persistent XSS in Galaxkey Secure Mail Client in Galaxkey up to 5.6.11.5 allows an attacker to perform an account takeover by intercepting the HTTP Post request when sending an email and injecting a specially crafted XSS payload in the 'subject' field. The payload executes when the recipient logs into their mailbox.

Severity

CVSS 3.1

5.4 medium

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 47% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2022-06-26
Modified: 2026-07-09
Record from: the NVD, synced 2026-10-19

Affected

galaxkey:galaxkey

References

https://medium.com/@tomhulme_74888/persistent-cross-site-scripting-leading-to-full-account-takeover-on-galaxkey-v5-6-11-4-8bf96be35b54
https://medium.com/%40tomhulme_74888/persistent-cross-site-scripting-leading-to-full-account-takeover-on-galaxkey-v5-6-11-4-8bf96be35b54

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