CVE-2025-49590
CVE-2025-49590 is a medium-severity vulnerability in Xwiki Cryptpad with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-692.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v4: 2.9
- EPSS exploit prediction: 0% (20th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-18910
- Weakness: CWE-692
- Affected product: Xwiki Cryptpad
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-49590?
- 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.
- How severe is CVE-2025-49590?
- CVE-2025-49590 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2025-49590 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-49590?
- CVE-2025-49590 affects Xwiki Cryptpad. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-49590?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-49590 have an EU (EUVD) identifier?
- Yes. CVE-2025-49590 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18910.
- When was CVE-2025-49590 published?
- CVE-2025-49590 was published on 2025-06-18 and last updated on 2026-06-17.
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
Affected products (1)
- cpe:2.3:a:xwiki:cryptpad:*:*:*:*:*:*:*:*
More vulnerabilities in Xwiki Cryptpad
- CVE-2025-49591 — Critical (CVSS 9.1): CryptPad is a collaboration suite. Prior to version 2025.3.0, enforcement of Two-Factor Authentication (2FA) in…
- CVE-2025-51846 — High (CVSS 7.5): CryptPad 2025.3.1 allows unbounded WebSocket frame flood. A remote, unauthenticated attacker can significantly degrade…
- CVE-2019-15302 — Medium (CVSS 6.5): The pad management logic in XWiki labs CryptPad before 3.0.0 allows a remote attacker (who has access to a Rich Text…
- CVE-2017-1000051 — Medium (CVSS 6.1): Cross-site scripting (XSS) vulnerability in pad export in XWiki labs CryptPad before 1.1.1 allows remote attackers to…
All CVEs affecting Xwiki Cryptpad →
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