CVE-2026-21432— Emlog has stored Cross-site Scripting issue that can lead to admin or another account ATO
Quick assessment
Affected
emlog emlog
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.
emlog是emlog开源的一套基于PHP和MySQL的CMS建站系统。 emlog 2.5.23版本存在跨站脚本漏洞，该漏洞源于存在存储型跨站脚本漏洞，可能导致账户接管。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-21432
Vulnerability Information
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Vulnerability Title
Emlog has stored Cross-site Scripting issue that can lead to admin or another account ATO
Source: CVE Program / CVE List V5
Vulnerability Description
Emlog is an open source website building system. Version 2.5.23 has a stored cross-site scripting vulnerability that can lead to account takeover, including takeover of admin accounts. As of time of publication, no known patched versions are available.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:P
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
Vulnerability Title
emlog 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
emlog是emlog开源的一套基于PHP和MySQL的CMS建站系统。 emlog 2.5.23版本存在跨站脚本漏洞，该漏洞源于存在存储型跨站脚本漏洞，可能导致账户接管。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-21432
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-21432 (1)
-
https://github.com/emlog/emlog/security/advisories/GHSA-4rxf-mjqx-c464 x_refsource_CONFIRM
Same Patch Batch · emlog · 2026-01-02 · 5 CVEs total
| CVE-2026-21433 | 7.7 HIGH | Emlog vulnerable to Server-Side Request Forgery (SSRF) |
| CVE-2026-21430 | Emlog: CSRF chained with stored XSS leads to ATO | |
| CVE-2026-21431 | Emlog vulnerable to stored Cross-site Scripting via image name | |
| CVE-2026-21429 | Emlog has Broken Access Control (BAC) |
IV. Related Vulnerabilities
Same product: emlog
-
CVE-2026-73848
Emlog: Stored XSS via Tag Name in Article Editor -
CVE-2026-53757
Emlog: Zip Slip Path Traversal in Plugin/Template ZIP Upload -
CVE-2026-53758
Emlog: Stored XSS via Parsedown Markdown Processing - Raw HT -
CVE-2026-53756
Emlog Blind SQL Injection via Authentication Cookie -
CVE-2026-73850
Emlog: Arbitrary SQL Execution Vulnerability in ai.php withi
Same vendor: emlog
-
CVE-2026-73848
Emlog: Stored XSS via Tag Name in Article Editor -
CVE-2026-53757
Emlog: Zip Slip Path Traversal in Plugin/Template ZIP Upload -
CVE-2026-53758
Emlog: Stored XSS via Parsedown Markdown Processing - Raw HT -
CVE-2026-53756
Emlog Blind SQL Injection via Authentication Cookie -
CVE-2026-73850
Emlog: Arbitrary SQL Execution Vulnerability in ai.php withi
Same weakness: CWE-79
-
CVE-2026-105116
OpenAM before 16.1.3 Latent XSS in SAML Load-Balancer Cookie -
CVE-2026-105114
OpenAM before 16.1.3 Reflected XSS via OAuth2 Authorization -
CVE-2026-92767
Twenty20 Image Before-After <= 2.0.5 - Authenticated (Contri -
CVE-2026-104313
WPC Estimated Delivery Date for WooCommerce <= 4.0.1 - Refle -
CVE-2026-93889
Mail logging <= 2.1.12 - Unauthenticated Stored Cross-Site S
V. Comments for CVE-2026-21432
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