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CVE-2026-102399— WordPress Photo Gallery by Supsystic plugin <= 1.21.0 - Cross Site Request Forgery (CSRF) vulnerability

Quick assessment

Affected
supsystic Photo Gallery by Supsystic
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Photo Gallery by Supsystic 插件在 1.21.0 及更早版本中存在未经身份验证的跨站请求伪造（CSRF）漏洞。

CVSS 5.4 · Medium EPSS 0.10% · P1

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
supsystic Photo Gallery by Supsystic n/a≤ 1.21.0 affected
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I. Basic Information for CVE-2026-102399

Vulnerability Information
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Vulnerability Title
WordPress Photo Gallery by Supsystic plugin <= 1.21.0 - Cross Site Request Forgery (CSRF) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated Cross Site Request Forgery (CSRF) in Photo Gallery by Supsystic <= 1.21.0 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
supsystic Photo Gallery by Supsystic n/a ~ 1.21.0 -

II. Public POCs for CVE-2026-102399

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-102399

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Vendor Advisories for CVE-2026-102399 (1)

Same Patch Batch · supsystic · 2026-09-30 · 5 CVEs total

CVE-2026-102395 7.1 HIGH WordPress Easy Google Maps plugin <= 1.14.6 - Cross Site Scripting (XSS) vulnerability
CVE-2026-102398 7.1 HIGH WordPress Popup by Supsystic plugin <= 1.13.1 - Cross Site Scripting (XSS) vulnerability
CVE-2026-102396 7.1 HIGH WordPress Ultimate Maps by Supsystic plugin <= 1.5.5 - Cross Site Scripting (XSS) vulnerab
CVE-2026-102397 6.5 MEDIUM WordPress Ultimate Maps by Supsystic plugin <= 1.5.5 - Broken Access Control vulnerability

IV. Related Vulnerabilities

Same product: Photo Gallery by Supsystic
Same vendor: supsystic
Same weakness: CWE-352

V. Comments for CVE-2026-102399

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