Is CVE-2025-49590 in the CISA KEV catalog?

No. CVE-2025-49590 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-49590?

CVE-2025-49590 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2025-49590?

CVE-2025-49590 has an EPSS score of 0.28% (19th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-49590?

Upgrade cryptpad to 2025.3.0 or later.

CVE & CISA-KEV Catalog

CVE-2025-49590

MEDIUM

6.1

CVSS v3

NVD

Description

CryptPad is a collaboration suite. Prior to version 2025.3.0, the "Link Bouncer" functionality attempts to filter javascript URIs to prevent Cross-Site Scripting (XSS), however this can be bypassed. There is an "early allow" code path that happens before the URI's protocol/scheme is checked, which a maliciously crafted URI can follow. This issue has been patched in version 2025.3.0.

CWE-692

How to fix

Remediation Available

cryptpadNVD

Affected:< 2025.3.0Fixed in:2025.3.0CVE-2025-49590derived 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 RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.28%probability of exploitation in 30 days

19thpercentile

Low risk: more likely to be exploited than 19% of all known CVEs.

References

Patch1

github.com

Exploit1

github.com

Product1

github.com

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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 2025-08-11.