Threats / TIBCO / CVE-2018-18809
CVE-2018-18809
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
TIBCO JasperReports vulnerability
TIBCO JasperReports Library contains a directory-traversal vulnerability allowing web server users to access host system contents.
Verdict
Today item — known-exploited.
A path-traversal flaw in JasperReports enables authenticated or unauthenticated attackers to read arbitrary files from the underlying server, potentially exposing sensitive configuration, credentials, and application data.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
1 independent public report of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-12-29).
Probability (EPSS)
EPSS 0.79836 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: TIBCO, JasperReports. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-22 Path Traversal — weakness family: Path traversal / file.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft a request with directory-traversal sequences to navigate outside the intended application directory.
Business
Sensitive files including credentials, configuration, and source code become accessible to unauthorized parties.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I extract system files and application secrets to identify further attack vectors or establish persistence.
Business
Compromised credentials enable lateral movement and escalation of the initial breach scope.
3
Lateral reach — past segmentation narrative 3
Attacker
I leverage exposed information to access databases, APIs, or other backend systems.
Business
Data exfiltration and system compromise expand beyond the web application to core business infrastructure.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05