CVE-2021-27564

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-02-22 · updated 2026-06-17
Weakness: CWE-79

Description

A stored XSS issue exists in Appspace 6.2.4. After a user is authenticated and enters an XSS payload under the groups section of the network tab, it is stored as the group name. Whenever another member visits that group, this payload executes.

Affected products

Appspace: 6.2.4

References

https://github.com/viperbluff/Appspace-Ver-6.2.4-Stored-Xss
https://github.com/viperbluff/Appspace-Ver-6.2.4-Stored-Xss

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