CVE-2026-3720Public exploitNetwork attack vector

Stored XSS via unsanitized Notice editor HTML

Published Mar 8, 2026 · Updated Mar 8, 2026

Stored XSS in SmartAdmin 3.0 through 3.29 allows remote authenticated users to execute script through crafted Notice content. The notice-form-drawer.vue form takes rich-text HTML from getHtml(), assigns it to contentHtml, and submits it without a neutralization step in that path. Low-privileged access is required to save a notice, and another user's interaction with the stored notice triggers integrity impact in that user's browser.

CVSS severity5.4
Medium
EPSS probability0.22%
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 SmartAdmin 3.0 through 3.29 allows remote authenticated users to execute script through crafted Notice content. The notice-form-drawer.vue form takes rich-text HTML from getHtml(), assigns it to contentHtml, and submits it without a neutralization step in that path. Low-privileged access is required to save a notice, and another user's interaction with the stored notice triggers integrity impact in that user's browser.

The record

CVE
CVE-2026-3720
Published
Mar 8, 2026
Updated
Mar 8, 2026
Vendor
1024创新实验室
Product
SmartAdmin
Classifications
CWE-79, CWE-94, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=3.0
  2. Affected versionversion=3.1
  3. Affected versionversion=3.10
  4. Affected versionversion=3.11
  5. Affected versionversion=3.12
  6. Affected versionversion=3.13
  7. Affected versionversion=3.14
  8. Affected versionversion=3.15
  9. Affected versionversion=3.16
  10. Affected versionversion=3.17
  11. Affected versionversion=3.18
  12. Affected versionversion=3.19
  13. Affected versionversion=3.2
  14. Affected versionversion=3.20
  15. Affected versionversion=3.21
  16. Affected versionversion=3.22
  17. Affected versionversion=3.23
  18. Affected versionversion=3.24
  19. Affected versionversion=3.25
  20. Affected versionversion=3.26
  21. Affected versionversion=3.27
  22. Affected versionversion=3.28
  23. Affected versionversion=3.29
  24. Affected versionversion=3.3
  25. Affected versionversion=3.4
  26. Affected versionversion=3.5
  27. Affected versionversion=3.6
  28. Affected versionversion=3.7
  29. Affected versionversion=3.8
  30. Affected versionversion=3.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

1024创新实验室 · SmartAdminversion=3.0; version=3.1; version=3.10; version=3.11; version=3.12; version=3.13; version=3.14; version=3.15; version=3.16; version=3.17; version=3.18; version=3.19; version=3.2; version=3.20; version=3.21; version=3.22; version=3.23; version=3.24; version=3.25; version=3.26; version=3.27; version=3.28; version=3.29; version=3.3; version=3.4; version=3.5; version=3.6; version=3.7; version=3.8; version=3.9

Published CVSS scores

3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/A:N
2.0VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.007JavaScript/JScript

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

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