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CVE-2019-8991

22
FAUCET Score

CVE-2019-8991 describes multiple cross-site scripting (XSS) and cross-site request forgery (CSRF) vulnerabilities within the administrator web interface of several TIBCO products, including ActiveMatrix BPM, ActiveMatrix Policy Director, and ActiveMatrix Service Grid, across various versions. With a CVSS score of 8.8 (High), these vulnerabilities are network-exploitable with low attack complexity, requiring user interaction, and could lead to high impacts on confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, no public exploit code available (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.2.0CPE matchmatch criteria
cpe:2.3:a:tibco:activematrix_bpm:*:*:*:*:*:*:*:*
<= 4.2.0CPE matchmatch criteria
cpe:2.3:a:tibco:activematrix_bpm:*:*:*:*:*:silver_fabric:*:*
<= 1.1.0CPE matchmatch criteria
cpe:2.3:a:tibco:activematrix_policy_director:*:*:*:*:*:*:*:*
<= 3.3.0CPE matchmatch criteria
cpe:2.3:a:tibco:activematrix_service_bus:*:*:*:*:*:*:*:*
<= 3.3.0CPE matchmatch criteria
cpe:2.3:a:tibco:activematrix_service_grid:*:*:*:*:*:silver_fabric:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.95%
Probability of exploitation in next 30 days
EPSS Percentile
57.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0095 is in the 59th percentile among its peer group of 14,875 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

tibco.com / support/advisories/2019/04/tibco-security-advisory-april-24-2019-tibco-active-matrix-service-grid-2019-8991
Vendor Advisory
securityfocus.com / bid/108059
Broken LinkThird Party AdvisoryVDB Entry
tibco.com / services/support/advisories
Vendor Advisory