TIBCO EBX Cross Site Scripting (XSS)

published 2021-02-02 5y ago modified 2026-06-17 4mo ago also EUVD-2021-10366

cvss: 8.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits: 0; none known

The TIBCO EBX Web Server component of TIBCO Software Inc.'s TIBCO EBX contains a vulnerability that theoretically allows a low privileged attacker with network access to execute a Stored Cross Site Scripting (XSS) attack on the affected system. Affected releases are TIBCO Software Inc.'s TIBCO EBX: versions 5.9.12 and below.

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Exploit prediction

0.93% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.0	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	8.0	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.0	AV:N/AC:M/Au:S/C:P/I:P/A:P

Affected products

TIBCO Software Inc. TIBCO EBX

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

tibco.com /support/advisories/2021/02/tibco-security-advisory-february-2-2021-tibco-ebx
vendor-advisory
tibco.com /services/support/advisories
product

Sources

CVE List CVE-2021-23271
NVD CVE-2021-23271

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