CVE-2025-7864Public exploitNetwork attack vector

Stored XSS via unsanitized PDF preview

Published Jul 20, 2025 · Updated Jul 21, 2025

Stored cross-site scripting in ThinkGem JeeSite 5.0 through 5.12.0 allows remote authenticated users to execute JavaScript via a crafted PDF upload. FileUploadController passes the PDF to the upload service without sanitizing active content, while UserfilesController serves it inline when source=preview. File-upload permission and a victim opening the preview are required; the script runs in the victim browser and can steal credentials or act in that session.

CVSS severity5.4
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stored cross-site scripting in ThinkGem JeeSite 5.0 through 5.12.0 allows remote authenticated users to execute JavaScript via a crafted PDF upload. FileUploadController passes the PDF to the upload service without sanitizing active content, while UserfilesController serves it inline when source=preview. File-upload permission and a victim opening the preview are required; the script runs in the victim browser and can steal credentials or act in that session.

The record

CVE
CVE-2025-7864
Published
Jul 20, 2025
Updated
Jul 21, 2025
Vendor
ThinkGem
Product
JeeSite
Classifications
CWE-284, CWE-434, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 21, 2025Record 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=5.0
  2. Affected versionversion=5.1
  3. Affected versionversion=5.10
  4. Affected versionversion=5.11
  5. Affected versionversion=5.12.0
  6. Affected versionversion=5.2
  7. Affected versionversion=5.3
  8. Affected versionversion=5.4
  9. Affected versionversion=5.5
  10. Affected versionversion=5.6
  11. Affected versionversion=5.7
  12. Affected versionversion=5.8
  13. Affected versionversion=5.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ThinkGem · JeeSiteversion=5.0; version=5.1; version=5.10; version=5.11; version=5.12.0; version=5.2; version=5.3; version=5.4; version=5.5; version=5.6; version=5.7; version=5.8; version=5.9

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.5VulDB CNAAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.3VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

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

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo