What’s Vulnerable › Vulnerabilities

CVE-2017-0890

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-05-08 · updated 2026-06-17
• Weakness: CWE-79

Description

Nextcloud Server before 11.0.3 is vulnerable to an inadequate escaping leading to a XSS vulnerability in the search module. To be exploitable a user has to write or paste malicious content into the search dialogue.

Affected products

• Nextcloud Server: before 11.0.3 — fixed in 11.0.3

How to fix

Upgrade to a fixed version: Nextcloud Server 11.0.3. Check the vendor advisory for mitigations.

References

• https://hackerone.com/reports/213227
• https://nextcloud.com/security/advisory/?id=nc-sa-2017-007
• https://hackerone.com/reports/213227
• https://nextcloud.com/security/advisory/?id=nc-sa-2017-007

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