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Vulnerability record · CVE-2013-0203 · published 22 November 2019

CVE-2013-0203: Owncloud cross-site scripting vulnerability

Owncloud · Owncloud

Multiple cross-site scripting (XSS) vulnerabilities in ownCloud 4.5.5, 4.0.10, and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) unspecified parameters to apps/calendar/ajax/event/new.php or (2) url parameter to apps/bookmarks/ajax/addBookmark.php.

5.4 CVSS 3.1 Medium EPSS 0.72% · top 47.8% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score, v2 3.5
0.72%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
4References
16 Jun 2026Last modified by NVD

Description

Multiple cross-site scripting (XSS) vulnerabilities in ownCloud 4.5.5, 4.0.10, and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) unspecified parameters to apps/calendar/ajax/event/new.php or (2) url parameter to apps/bookmarks/ajax/addBookmark.php.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://exchange.xforce.ibmcloud.com/vulnerabilities/81478 Third Party AdvisoryVDB Entry
https://owncloud.org/security/advisories/multiple-xss-vulnerabilities-3/ Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/81478 Third Party AdvisoryVDB Entry
https://owncloud.org/security/advisories/multiple-xss-vulnerabilities-3/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2013-0203), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.