Is CVE-2025-30203 in the CISA KEV catalog?

No. CVE-2025-30203 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-30203?

CVE-2025-30203 has a CVSS v3 base score of 4.8 (MEDIUM).

What is the EPSS score for CVE-2025-30203?

CVE-2025-30203 has an EPSS score of 0.26% (18th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-30203?

Upgrade tuleap to 16.5-5 or later.

CVE & CISA-KEV Catalog

CVE-2025-30203

MEDIUM

4.8

CVSS v3

NVD

Description

Tuleap is an Open Source Suite to improve management of software developments and collaboration. Tuleap allows cross-site scripting (XSS) via the content of RSS feeds in the RSS widgets. A project administrator or someone with control over an used RSS feed could use this vulnerability to force victims to execute uncontrolled code. This vulnerability is fixed in Tuleap Community Edition 16.5.99.1742562878 and Tuleap Enterprise Edition 16.5-5 and 16.4-8.

CWE-79Cross-Site Scripting (XSS)CWE-84

How to fix

Remediation Available

tuleapNVD

Affected:>= 16.5, < 16.5-5Fixed in:16.5-5CVE-2025-30203derived from NVD

Affected:< 16.5.99.1742562878Fixed in:16.5.99.1742562878CVE-2025-30203derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionRequired

ScopeChanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

0.26%probability of exploitation in 30 days

18thpercentile

Low risk: more likely to be exploited than 18% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

tuleap.net

Third-Party Advisory1

github.com

Other references1

tuleap.net

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-08-21.