CVE-2021-23271
TIBCO EBX Cross Site Scripting (XSS)
- Published
- Updated
- Reserved
- Assigned by
- tibco
Description
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.
Timeline
ID reserved
By tibco
- 25 days later
· 25 days later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| tibcoCNA (assigner) | 3.1 | High8.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High8.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.93% · top 39% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.0.
Weakness
- The impact of these vulnerabilities include the possibility that an attacker would gain full administrative access to the web interface of the affected component.
- CWE-79 (opens in a new tab)All about CWE-79 and its CVEs
Affected products
TIBCO Software Inc. · TIBCO EBX
- affected unspecified – ≤ 5.9.12
What to do
Solution: TIBCO has released updated versions of the affected components which address these issues. TIBCO EBX versions 5.9.12 and below update to version 5.9.13 or higher
References (2)
- http://www.tibco.com/services/support/advisories (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.tibco.com/support/advisories/2021/02/tibco-security-advisory-february-2-2021-tibco-ebx (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-23271)Record last updated .