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Vulnerability record · CVE-2021-27989 · published 14 April 2021

CVE-2021-27989: Appspace cross-site scripting vulnerability

Appspace · Appspace

Appspace 6.2.4 is vulnerable to stored cross-site scripting (XSS) in multiple parameters within /medianet/sgcontentset.aspx.

5.4 CVSS 3.1 Medium EPSS 0.50% · top 59.7% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score, v2 3.5
0.50%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Appspace 6.2.4 is vulnerable to stored cross-site scripting (XSS) in multiple parameters within /medianet/sgcontentset.aspx.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/syedsohaibkarim/PoC-StoredXSS-Appspace6.2.4 Third Party Advisory
https://github.com/syedsohaibkarim/PoC-StoredXSS-Appspace6.2.4 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-27989), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.