CVE-2021-28827
Published: 20 April 2021
Summary
CVE-2021-28827 is a critical-severity Cross-site Scripting (CWE-79) vulnerability in Tibco Administrator. Its CVSS base score is 9.6 (Critical).
Operationally, ranked in the top 29.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-15483
Vulnerability details
The Administration GUI component of TIBCO Software Inc.'s TIBCO Administrator - Enterprise Edition, TIBCO Administrator - Enterprise Edition, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric, TIBCO Administrator…
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- Enterprise Edition for z/Linux, TIBCO Administrator - Enterprise Edition for z/Linux, TIBCO Runtime Agent, TIBCO Runtime Agent, TIBCO Runtime Agent for z/Linux, and TIBCO Runtime Agent for z/Linux contains an easily exploitable vulnerability that allows an unauthenticated attacker to social engineer a legitimate user with network access to execute a Stored XSS attack targeting the affected system. A successful attack using this vulnerability requires human interaction from a person other than the attacker. Affected releases are TIBCO Software Inc.'s TIBCO Administrator - Enterprise Edition: versions 5.10.2 and below, TIBCO Administrator - Enterprise Edition: versions 5.11.0 and 5.11.1, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric: versions 5.10.2 and below, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric: versions 5.11.0 and 5.11.1, TIBCO Administrator - Enterprise Edition for z/Linux: versions 5.10.2 and below, TIBCO Administrator - Enterprise Edition for z/Linux: versions 5.11.0 and 5.11.1, TIBCO Runtime Agent: versions 5.10.2 and below, TIBCO Runtime Agent: versions 5.11.0 and 5.11.1, TIBCO Runtime Agent for z/Linux: versions 5.10.2 and below, and TIBCO Runtime Agent for z/Linux: versions 5.11.0 and 5.11.1.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.