CVE-2025-49590

low-risk
Published 2025-06-18

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.

Do I need to act?

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0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.1/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Cryptpad

Affected Vendors

Xwiki

References (3)

Product https://github.com/cryptpad/cryptpad/blob/15c81aa8ccb737a9a1167481f4a699af331364...
Patch https://github.com/cryptpad/cryptpad/commit/d5e4830ba104a4a442cb23aab5378b8565a9...
Exploit https://github.com/cryptpad/cryptpad/security/advisories/GHSA-vq9h-x3gr-v8rj
28
/ 100
low-risk
Severity 23/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal