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CVE-2021-29625— XSS in doc_link

Quick assessment

Affected
vrana adminer
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SOURCEFORGE Adminer是美国SOURCEFORGE社区的一个应用软件。提供单个PHP文件中的数据库管理。 Adminer 4.6.1版本至4.8.0版本存在安全漏洞，该漏洞源于Adminer使用pdo扩展与数据库通信。在没有CSP的浏览器中会受到影响。

CVSS 7.5 · High EPSS 9.57% · P95

Public Exploits 1

Nuclei · 1 CVE-2021-29625.yaml [template]
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I. Basic Information for CVE-2021-29625

Vulnerability Information
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Vulnerability Title
XSS in doc_link
Source: CVE Program / CVE List V5
Vulnerability Description
Adminer is open-source database management software. A cross-site scripting vulnerability in Adminer versions 4.6.1 to 4.8.0 affects users of MySQL, MariaDB, PgSQL and SQLite. XSS is in most cases prevented by strict CSP in all modern browsers. The only exception is when Adminer is using a `pdo_` extension to communicate with the database (it is used if the native extensions are not enabled). In browsers without CSP, Adminer versions 4.6.1 to 4.8.0 are affected. The vulnerability is patched in version 4.8.1. As workarounds, one can use a browser supporting strict CSP or enable the native PHP extensions (e.g. `mysqli`) or disable displaying PHP errors (`display_errors`).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
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
SOURCEFORGE Adminer 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SOURCEFORGE Adminer是美国SOURCEFORGE社区的一个应用软件。提供单个PHP文件中的数据库管理。 Adminer 4.6.1版本至4.8.0版本存在安全漏洞，该漏洞源于Adminer使用pdo扩展与数据库通信。在没有CSP的浏览器中会受到影响。
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

Vendor Product Affected Versions CPE Subscribe
vrana adminer >= 4.7.8, < 4.8.1 -

II. Public POCs for CVE-2021-29625

# POC Description Source Link Shenlong Link
1 Adminer 4.6.1 to 4.8.0 contains a cross-site scripting vulnerability which affects users of MySQL, MariaDB, PgSQL, and SQLite in browsers without CSP when Adminer uses a `pdo_` extension to communicate with the database (it is used if the native extensions are not enabled). https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-29625.yaml POC Details
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Qwen3.6-35B-A3B · 5828 chars
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III. Intelligence Information for CVE-2021-29625

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Patches & Fixes for CVE-2021-29625 (1)

Vendor Advisories for CVE-2021-29625 (1)

Other References for CVE-2021-29625 (1)

IV. Related Vulnerabilities

Same product: adminer
Same vendor: vrana
Same weakness: CWE-79

V. Comments for CVE-2021-29625

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