CVE-2026-34951Public exploitNetwork attack vector

Session hijacking via reflected footer script injection

Published Apr 6, 2026 · Updated Apr 6, 2026

Reflected XSS in forceworkbench Workbench before 65.0.0 allows remote attackers to execute script in a user's browser via footerScripts. In footer.php, a request-controlled footerScripts array is treated as internal state and each element is printed without output encoding. Exploitation requires a user to open a crafted URL; injected script runs in the Workbench origin and can access browser-visible session data.

CVSS severity5.1
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in forceworkbench Workbench before 65.0.0 allows remote attackers to execute script in a user's browser via footerScripts. In footer.php, a request-controlled footerScripts array is treated as internal state and each element is printed without output encoding. Exploitation requires a user to open a crafted URL; injected script runs in the Workbench origin and can access browser-visible session data.

The record

CVE
CVE-2026-34951
Published
Apr 6, 2026
Updated
Apr 6, 2026
Vendor
forceworkbench
Product
Workbench
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 65.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

forceworkbench · Workbenchversion=< 65.0.0

Published CVSS scores

5.1GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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