CVE-2026-78302Network attack vector

Unauthenticated stored XSS via unescaped script values

Published Sep 10, 2026 · Updated Sep 11, 2026

Stored XSS in JoomShaper SP Property 1.0.0 through 4.1.3 allows remote attackers to execute script through property and agent views. Property and agent view templates place attacker-controlled values into JavaScript blocks without context-appropriate escaping. Unauthenticated injection persists until a visitor or administrator renders an affected view, enabling browser-context data access or actions.

CVSS severity8.6
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in JoomShaper SP Property 1.0.0 through 4.1.3 allows remote attackers to execute script through property and agent views. Property and agent view templates place attacker-controlled values into JavaScript blocks without context-appropriate escaping. Unauthenticated injection persists until a visitor or administrator renders an affected view, enabling browser-context data access or actions.

The record

CVE
CVE-2026-78302
Published
Sep 10, 2026
Updated
Sep 11, 2026
Vendor
JoomShaper
Product
SP Property
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 11, 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=1.0.0-4.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JoomShaper · SP Propertyversion=1.0.0-4.1.3

Published CVSS scores

8.6Joomla CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/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')
T1189Drive-by Compromise

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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