What is CVE-2026-34951?

CVE-2026-34951 is a medium-severity vulnerability in Forceworkbench, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-04-06.

How severe is CVE-2026-34951?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Forceworkbench

CVE-2026-34951

Workbench is a suite of tools for administrators and developers to interact with Salesforce.com organizations via the Force.com APIs. Prior to 65.0.0, Workbench contains a reflected cross-site scripting vulnerability via the footerScripts parameter, which does not sanitize user-supplied input before rendering it in the page response. Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Workbench allows XSS Targeting Error Pages. This vulnerability is fixed in 65.0.0.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (4.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Forceworkbench — versions < 65.0.0
Salesforce Workbench

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-34951?: CVE-2026-34951 is a medium-severity vulnerability in Forceworkbench, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-04-06.
How severe is CVE-2026-34951?: Medium severity. CVSS v3 base score is 6.1 out of 10.