CVE-2026-21430— Emlog: CSRF chained with stored XSS leads to ATO
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I. Basic Information for CVE-2026-21430
Vulnerability Information
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Vulnerability Title
Emlog: CSRF chained with stored XSS leads to ATO
Source: NVD (National Vulnerability Database)
Vulnerability Description
Emlog is an open source website building system. In version 2.5.23, article creation functionality is vulnerable to cross-site request forgery (CSRF). This can lead to a user being forced to post an article with arbitrary, attacker-controlled content. This, when combined with stored cross-site scripting, leads to account takeover. As of time of publication, no known patched versions are available.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨站请求伪造(CSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
emlog 跨站请求伪造漏洞
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版本存在跨站请求伪造漏洞，该漏洞源于文章创建功能存在跨站请求伪造，可能导致用户被迫发布攻击者控制的文章。
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-2026-21430
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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- https://github.com/emlog/emlog/security/advisories/GHSA-2g2w-vmg7-pq4qx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-21430
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-2026-21431 | Emlog vulnerable to stored Cross-site Scripting via image name | |
| CVE-2026-21432 | Emlog has stored Cross-site Scripting issue that can lead to admin or another account ATO | |
| CVE-2026-21429 | Emlog has Broken Access Control (BAC) |
IV. Related Vulnerabilities
Same product: emlog
- CVE-2026-42287
Emlog: SQL Injection Vulnerability in log_model.php within a - CVE-2026-42286
Emlog: Cross-Site Request Forgery in Admin Functions - CVE-2026-41517
Emlog: Remote Code Execution via Malicious Plugin Upload - CVE-2026-34788
Emlog: SQL Injection in tag_model::updateTagName() via unsan - CVE-2026-34787
Emlog: Local File Inclusion in plugin.php via unsanitized pl
Same vendor: emlog
- CVE-2026-42287
Emlog: SQL Injection Vulnerability in log_model.php within a - CVE-2026-42286
Emlog: Cross-Site Request Forgery in Admin Functions - CVE-2026-41517
Emlog: Remote Code Execution via Malicious Plugin Upload - CVE-2026-34788
Emlog: SQL Injection in tag_model::updateTagName() via unsan - CVE-2026-34787
Emlog: Local File Inclusion in plugin.php via unsanitized pl
Same weakness: CWE-352
- CVE-2021-47953
OpenCart 3.0.3.7 Cross-Site Request Forgery via account/pass - CVE-2021-47946
OpenCart 3.0.3.6 Account Takeover via Cross Site Request For - CVE-2022-50955
WordPress Plugin Curtain 1.0.2 Cross-site Request Forgery - CVE-2026-8194
osTicket Dispatcher class.dispatcher.php cross-site request - CVE-2026-42286
Emlog: Cross-Site Request Forgery in Admin Functions
V. Comments for CVE-2026-21430
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