CVE-2026-102398— WordPress Popup by Supsystic plugin <= 1.13.1 - Cross Site Scripting (XSS) vulnerability
Quick assessment
Affected
supsystic Popup 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.
Popup by Supsystic 插件在 1.13.1 及更早版本中存在未经身份验证的跨站脚本（XSS）漏洞。
Possible ATT&CK Techniques 1 AI
T1059.007 · JavaScript
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I. Basic Information for CVE-2026-102398
Vulnerability Information
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Vulnerability Title
WordPress Popup by Supsystic plugin <= 1.13.1 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated Cross Site Scripting (XSS) in Popup by Supsystic <= 1.13.1 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| supsystic | Popup by Supsystic | n/a ~ 1.13.1 | - |
|
II. Public POCs for CVE-2026-102398
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Other References for CVE-2026-102398 (1)
Same Patch Batch · supsystic · 2026-09-30 · 4 CVEs total
| CVE-2026-102395 | 7.1 HIGH | WordPress Easy Google Maps plugin <= 1.14.6 - 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-2026-102399 | 5.4 MEDIUM | WordPress Photo Gallery by Supsystic plugin <= 1.21.0 - Cross Site Request Forgery (CSRF) |
IV. Related Vulnerabilities
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Same vendor: supsystic
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CVE-2026-102399
WordPress Photo Gallery by Supsystic plugin <= 1.21.0 - Cros -
CVE-2026-102395
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WordPress Ultimate Maps by Supsystic plugin <= 1.5.5 - Cross -
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WordPress Ultimate Maps by Supsystic plugin <= 1.5.3 - Broke -
CVE-2026-73381
WordPress Popup by Supsystic plugin <= 1.13.0 - Broken Authe
Same weakness: CWE-79
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CVE-2026-103389
MISP Stored Cross-Site Scripting via Unvalidated Galaxy Icon -
CVE-2026-103388
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CVE-2026-62084
WordPress User Submitted Posts plugin <= 20260810 - Cross Si -
CVE-2026-102395
WordPress Easy Google Maps plugin <= 1.14.6 - Cross Site Scr -
CVE-2026-102396
WordPress Ultimate Maps by Supsystic plugin <= 1.5.5 - Cross
V. Comments for CVE-2026-102398
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