Cyber Resilience

CVE-2025-49590

LowPublic PoC

Published: 18 June 2025

Published
18 June 2025
Modified
11 August 2025
KEV Added
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Patch
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CVSS Score v4 2.9 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0011 28.1th percentile
Risk Priority 6 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-49590 is a low-severity Incomplete Denylist to Cross-Site Scripting (CWE-692) vulnerability in Xwiki Cryptpad. Its CVSS base score is 2.9 (Low).

Operationally, ranked at the 28.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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…

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protocol/scheme is checked, which a maliciously crafted URI can follow. This issue has been patched in version 2025.3.0.

CWE(s)
CWE-692

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

xwiki
cryptpad
≤ 2025.3.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References