What’s Vulnerable › Vulnerabilities

CVE-2013-0304

• Severity: medium (CVSS 4.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2014-06-05 · updated 2026-06-16
• Weakness: CWE-264

Description

ownCloud Server before 4.5.7 does not properly check ownership of calendars, which allows remote authenticated users to read arbitrary calendars via the calid parameter to /apps/calendar/export.php. NOTE: this issue has been reported as a cross-site request forgery (CSRF) vulnerability, but due to lack of details, it is uncertain what the root cause is.

Affected products

• Owncloud: through 4.5.6
• ownCloud: 4.5.0, 4.5.1, 4.5.2, 4.5.3, 4.5.4, 4.5.5

References

• http://owncloud.org/about/security/advisories/oC-SA-2013-007/
• http://securite.intrinsec.com/wp-content/uploads/2013/02/ISEC-V2013-01-v-1.0-Owncloud-4.5.4-Arbitrary-calendar-export.pdf
• http://owncloud.org/about/security/advisories/oC-SA-2013-007/
• http://securite.intrinsec.com/wp-content/uploads/2013/02/ISEC-V2013-01-v-1.0-Owncloud-4.5.4-Arbitrary-calendar-export.pdf

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