HOMEVULNERABILITIESCVE-2019-8991
HIGH

CVE-2019-8991

CWE-79Published: April 24, 2019· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

The administrator web interface of TIBCO Software Inc.'s TIBCO ActiveMatrix BPM, TIBCO ActiveMatrix BPM Distribution for TIBCO Silver Fabric, TIBCO ActiveMatrix Policy Director, TIBCO ActiveMatrix Service Bus, TIBCO ActiveMatrix Service Grid, TIBCO Silver Fabric Enabler for ActiveMatrix BPM, and TIBCO Silver Fabric Enabler for ActiveMatrix Service Grid contains multiple vulnerabilities that may allow for cross-site scripting (XSS) and cross-site request forgery (CSRF) attacks. Affected releases are TIBCO Software Inc.'s TIBCO ActiveMatrix BPM: versions up to and including 4.2.0, TIBCO ActiveMatrix BPM Distribution for TIBCO Silver Fabric: versions up to and including 4.2.0, TIBCO ActiveMatrix Policy Director: versions up to and including 1.1.0, TIBCO ActiveMatrix Service Bus: versions up to and including 3.3.0, TIBCO ActiveMatrix Service Grid: versions up to and including 3.3.1, TIBCO Silver Fabric Enabler for ActiveMatrix BPM: versions up to and including 1.4.1, and TIBCO Silver Fabric Enabler for ActiveMatrix Service Grid: versions up to and including 1.3.1.

NVD Source

Technical Analysis

CVE-2019-8991 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

tibco5 product(s)
activematrix bpmactivematrix policy directoractivematrix service busactivematrix service gridsilver fabric enabler
Source: NVD CPE · 5 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/bid/108059
ADVISORYhttp://www.tibco.com/services/support/advisories
ADVISORYhttps://www.tibco.com/support/advisories/2019/04/tibco-security-advisory-april-24-2019-tibco-active-matrix-service-grid-2019-8991
ADVISORYhttp://www.securityfocus.com/bid/108059
ADVISORYhttp://www.tibco.com/services/support/advisories
ADVISORYhttps://www.tibco.com/support/advisories/2019/04/tibco-security-advisory-april-24-2019-tibco-active-matrix-service-grid-2019-8991

All References (6)

→
http://www.securityfocus.com/bid/108059Broken Link · Third Party Advisory · VDB Entry
→
http://www.tibco.com/services/support/advisoriesVendor Advisory
→
https://www.tibco.com/support/advisories/2019/04/tibco-security-advisory-april-24-2019-tibco-active-matrix-service-grid-2019-8991Vendor Advisory
→
http://www.securityfocus.com/bid/108059Broken Link · Third Party Advisory · VDB Entry
→
http://www.tibco.com/services/support/advisoriesVendor Advisory
→
https://www.tibco.com/support/advisories/2019/04/tibco-security-advisory-april-24-2019-tibco-active-matrix-service-grid-2019-8991Vendor Advisory

Quick Facts

CVE IDCVE-2019-8991
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-79
CISA KEVNo
Affected1 vendor(s)
PublishedApr 24, 2019

Related CVEs (CWE-79)

CVE-2023-0776
10.0
CVE-2025-49410
10.0
CVE-2024-6886
10.0
CVE-2021-32671
10.0
CVE-2011-3046
10.0
CVE-2026-54433
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-8991 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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