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CVE-2021-35493

20
FAUCET Score

CVE-2021-35493 describes easily exploitable Stored and Reflected Cross-Site Scripting (XSS) vulnerabilities in TIBCO WebFOCUS Client, Installer, and Reporting Server versions 8207.27.0 and below. A low-privileged attacker could leverage this to social engineer legitimate users into executing malicious scripts, impacting the affected system or the victim's local system. With a CVSS score of 5.4 (Medium), this vulnerability requires user interaction for successful exploitation and has a low attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8207.27.0CPE matchmatch criteria
cpe:2.3:a:tibco:webfocus_client:*:*:*:*:*:*:*:*
<= 8207.27.0CPE matchmatch criteria
cpe:2.3:a:tibco:webfocus_installer:*:*:*:*:*:*:*:*
<= 8207.27.0CPE matchmatch criteria
cpe:2.3:a:tibco:webfocus_reporting_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.0CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.60%
Probability of exploitation in next 30 days
EPSS Percentile
44.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0060 is in the 73rd percentile among its peer group of 15,239 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

tibco.com / services/support/advisories
Vendor Advisory
tibco.com / support/advisories/2021/09/tibco-security-advisory-september-14-2021-tibco-webfocus-2021-35493
Vendor Advisory