CVE-2020-27509

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Summary

CVECVE-2020-27509
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-06-26 13:15:08 UTC
Updated2026-07-05 00:16:57 UTC
DescriptionPersistent 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.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from [email protected]

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

EPSS: 0.007340000 probability, percentile 0.499590000 (date 2026-07-06)

Problem Types: CWE-79 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
2.0[email protected]Primary3.5AV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
Single
Confidentiality
None
Integrity
Partial
Availability
None

AV:N/AC:M/Au:S/C:N/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Galaxkey Galaxkey All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Persistent Cross-site scripting leading to full account takeover on Galaxkey v5.6.11.4 | by Tom | Jun, 2022 | Medium af854a3a-2127-422b-91ae-364da2661108 medium.com
Galaxkey - Data Security For Personal & Business Use af854a3a-2127-422b-91ae-364da2661108 galaxkey.com Product
Persistent Cross-site scripting leading to full account takeover on Galaxkey v5.6.11.4 | by Tom | Jun, 2022 | Medium [email protected] medium.com
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