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CVE-2026-25736— Rucio WebUI has a Stored Cross-site Scripting (XSS) Vulnerability in its Custom RSE Attribute

Quick assessment

Affected
rucio rucio
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.

Rucio是rucio开源的一个科学数据管理工具。 Rucio 35.8.3之前版本、38.5.4之前版本和39.3.1之前版本存在安全漏洞，该漏洞源于WebUI的Custom RSE Attribute中攻击者控制的输入未经适当输出编码，可能导致存储型跨站脚本攻击。

CVSS 6.1 · Medium EPSS 0.29% · P21
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I. Basic Information for CVE-2026-25736

Vulnerability Information
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Vulnerability Title
Rucio WebUI has a Stored Cross-site Scripting (XSS) Vulnerability in its Custom RSE Attribute
Source: CVE Program / CVE List V5
Vulnerability Description
Rucio is a software framework that provides functionality to organize, manage, and access large volumes of scientific data using customizable policies. Versions prior to 35.8.3, 38.5.4, and 39.3.1 have a stored Cross-Site Scripting (XSS) vulnerability in the Custom RSE Attribute of the WebUI where attacker-controlled input is persisted by the backend and later rendered in the WebUI without proper output encoding. This allows arbitrary JavaScript execution in the context of the WebUI for users who view affected pages, potentially enabling session token theft or unauthorized actions. Versions 35.8.3, 38.5.4, and 39.3.1 fix the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
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
Rucio 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rucio是rucio开源的一个科学数据管理工具。 Rucio 35.8.3之前版本、38.5.4之前版本和39.3.1之前版本存在安全漏洞，该漏洞源于WebUI的Custom RSE Attribute中攻击者控制的输入未经适当输出编码，可能导致存储型跨站脚本攻击。
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
rucio rucio < 35.8.3 -

II. Public POCs for CVE-2026-25736

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III. Intelligence Information for CVE-2026-25736

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Vendor Advisories for CVE-2026-25736 (1)

News Coverage for CVE-2026-25736 (1)

Vendor Pages for CVE-2026-25736 (1)

Same Patch Batch · rucio · 2026-02-25 · 6 CVEs total

CVE-2026-25136 8.1 HIGH Rucio WebUI has a Reflected Cross-site Scripting Vulnerability
CVE-2026-25733 7.3 HIGH Rucio WebUI Vulnerable to Stored Cross-site Scripting (XSS) through Custom Rule Function
CVE-2026-25734 6.1 MEDIUM Rucio WebUI has Stored Cross-site Scripting (XSS) in RSE Metadata
CVE-2026-25735 6.1 MEDIUM Rucio WebUI has a Stored Cross-site Scripting (XSS) vulnerability its Identity Name
CVE-2026-25138 5.3 MEDIUM Rucio WebUI has Username Enumeration via Login Error Message

IV. Related Vulnerabilities

Same product: rucio
Same vendor: rucio
Same weakness: CWE-79

V. Comments for CVE-2026-25736

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