CVE-2025-49590

2.9 lowEPSS 0.3%

Low (2.9) in xwiki cryptpad. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

2.9 low

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

CVSS 3.1

6.1 medium

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 26% of CVEs (scores of 2026-10-31)
CWE: CWE-692
Published: 2025-06-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

xwiki:cryptpad

References

https://github.com/cryptpad/cryptpad/blob/15c81aa8ccb737a9a1167481f4a699af331364bb/www/bounce/main.js#L64-L95
https://github.com/cryptpad/cryptpad/commit/d5e4830ba104a4a442cb23aab5378b8565a95607
https://github.com/cryptpad/cryptpad/security/advisories/GHSA-vq9h-x3gr-v8rj

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