← Vulnerability feed

Vulnerability record · CVE-2026-25735 · published 25 February 2026

CVE-2026-25735: Cern rucio cross-site scripting vulnerability

Cern · Rucio

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 Identity Name 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.

4.8 CVSS 3.1 Medium EPSS 0.46% · top 62.7% CWE-79 · Cross-site scriptingCWE-1004 · CWE-1004
4.8CVSS 3.1 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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 Identity Name 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.

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_Cheat_Sheet.html Not Applicable
https://github.com/rucio/rucio/releases/tag/35.8.3 ProductRelease Notes
https://github.com/rucio/rucio/releases/tag/38.5.4 ProductRelease Notes
https://github.com/rucio/rucio/releases/tag/39.3.1 ProductRelease Notes
https://github.com/rucio/rucio/security/advisories/GHSA-8wpv-6x3f-3rm5 ExploitVendor Advisory
https://github.com/rucio/rucio/security/advisories/GHSA-8wpv-6x3f-3rm5 ExploitVendor Advisory

Track CVE-2026-25735 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.4CVE-2026-29080Cern rucio sql injection vulnerabilityA SQL injection vulnerability in `FilterEngine.create_sqla_query()` allows any authenticated Rucio user to execute arbitrary SQL against the backend …EPSS 0.52%9.0CVE-2026-29090Cern rucio sql injection vulnerability### Summary A SQL injection vulnerability exists in Rucio versions 1.30.0 and later before 35.8.5, 38.5.5, 39.4.2, and 40.1.1, in `FilterEngine.creat…EPSS 0.54%6.1CVE-2026-25136Cern rucio cross-site scripting vulnerabilityRucio is a software framework that provides functionality to organize, manage, and access large volumes of scientific data using customizable policie…EPSS 0.27%5.4CVE-2026-25733Cern rucio cross-site scripting vulnerabilityRucio is a software framework that provides functionality to organize, manage, and access large volumes of scientific data using customizable policie…EPSS 0.42%5.3CVE-2026-25138Cern rucio vulnerabilityRucio is a software framework that provides functionality to organize, manage, and access large volumes of scientific data using customizable policie…EPSS 0.33%4.8CVE-2026-25736Cern rucio cross-site scripting vulnerabilityRucio is a software framework that provides functionality to organize, manage, and access large volumes of scientific data using customizable policie…EPSS 0.46%4.8CVE-2026-25734Cern rucio cross-site scripting vulnerabilityRucio is a software framework that provides functionality to organize, manage, and access large volumes of scientific data using customizable policie…EPSS 0.46%6.1CVE-2026-42897Microsoft Exchange Server XSS enables spoofingMicrosoft Exchange Server and Exchange Server Subscription Edition fail to neutralize input during web page generation, a cross-site scripting flaw (…KEVEPSS 0.52%analysed

Source: NIST National Vulnerability Database (record CVE-2026-25735), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.