CVE-2026-78615Network attack vector

Authenticated-user JavaScript execution via crafted report URL

Published Aug 27, 2026 · Updated Aug 27, 2026

Reflected DOM-based XSS in WatchGuard Dimension 2.0 through 2.3.0 allows remote attackers to execute JavaScript via a crafted report URL. WatchGuard identifies the report detail page but does not disclose which URL component reaches the DOM sink or how it is inserted without safe handling. Exploitation requires an authenticated victim with report access to open the link, after which the script can read same-origin data and act with the victim's web permissions.

CVSS severity4.6
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected DOM-based XSS in WatchGuard Dimension 2.0 through 2.3.0 allows remote attackers to execute JavaScript via a crafted report URL. WatchGuard identifies the report detail page but does not disclose which URL component reaches the DOM sink or how it is inserted without safe handling. Exploitation requires an authenticated victim with report access to open the link, after which the script can read same-origin data and act with the victim's web permissions.

The record

CVE
CVE-2026-78615
Published
Aug 27, 2026
Updated
Aug 27, 2026
Vendor
WatchGuard Technologies
Product
WatchGuard Dimension
Classifications
CWE-79, CAPEC-63, CAPEC-591, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 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=2.0 <2.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WatchGuard Technologies · WatchGuard Dimensionversion=2.0 <2.3.1

Published CVSS scores

4.6WatchGuard TechnologiesCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-63Cross-Site Scripting (XSS)
CAPEC-591Reflected XSS
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

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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