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CVE-2013-0203

20
FAUCET Score

CVE-2013-0203 describes multiple cross-site scripting (XSS) vulnerabilities in ownCloud versions 4.5.5, 4.0.10, and earlier. These flaws allow remote attackers to inject arbitrary web script or HTML through unspecified parameters in apps/calendar/ajax/event/new.php or the 'url' parameter in apps/bookmarks/ajax/addBookmark.php. Rated Medium severity with a CVSS score of 5.4, successful exploitation requires user interaction and could lead to limited confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.0.10CPE matchmatch criteria
cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*
>= 4.5.0, <= 4.5.5CPE matchmatch criteria
cpe:2.3:a:owncloud:owncloud_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.72%
Probability of exploitation in next 30 days
EPSS Percentile
50.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0072 is in the 85th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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