MEDIUM
CVE-2011-0509
CWE-79Published: January 20, 2011· Updated: Jun 16, 2026
4.3
CVSS v3.1
Official Description
Cross-site scripting (XSS) vulnerability in Vaadin before 6.4.9 allows remote attackers to inject arbitrary web script or HTML via unknown vectors related to the index page.
Technical Analysis
CVE-2011-0509 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityNone
IntegrityP
AvailabilityNone
AV:N/AC:M/Au:N/C:N/I:P/A:N
Affected Vendors & Products
vaadin1 product(s)
vaadin
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (12)
→
http://dev.vaadin.com/ticket/6257Issue Tracking · Vendor Advisory
→
http://osvdb.org/70398Broken Link
→
http://secunia.com/advisories/42879Vendor Advisory
→
→
http://www.securityfocus.com/bid/45779Third Party Advisory · VDB Entry
→
http://dev.vaadin.com/ticket/6257Issue Tracking · Vendor Advisory
→
http://osvdb.org/70398Broken Link
→
http://secunia.com/advisories/42879Vendor Advisory
→
→
http://www.securityfocus.com/bid/45779Third Party Advisory · VDB Entry
Quick Facts
CVE IDCVE-2011-0509
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-79
CISA KEVNo
Affected1 vendor(s)
PublishedJan 20, 2011
Related CVEs (CWE-79)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2011-0509 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.