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CVE-2025-49590

CryptPad Dom-Based Cross-Site Scripting (XSS) Vulnerability

Published: Jun 18, 2025Updated: Aug 11, 2025 Sources: CVE List NVDCWE-692
6.1MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 78.9%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-692

Affected Products

xwiki
oss-project·FRaka xwiki-platform, xwiki-commons
cryptpadOn-premCMS Plugin
Web & CMS Plugins / wordpress-plugin
cryptpad
commercial
cryptpadSaaS
Cloud & SaaS / saas-application

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
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References

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

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