CVE-2012-6550: Cross-site scripting (XSS) vulnerability in ZeroClipboard before 1.1.4 allows remote attackers to inject arbit

Q: How do I fix CVE-2012-6550?

zeroclipboard: upgrade to newer than 1.0.7. Exact commands for each OS are on this page.

Q: Is CVE-2012-6550 being exploited?

CVE-2012-6550 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2012-6550 affect?

CVE-2012-6550 affects zeroclipboard. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in ZeroClipboard before 1.1.4 allows remote attackers to inject arbitrary web script or HTML via "the clipText returned from the flash object," a different vulnerability than CVE-2013-1808.

Q: How urgent is CVE-2012-6550?

Priority 43/100. EPSS top 8%: very likely to be exploited; Public exploit reference

This month

MEDIUM 4.3UPGRADE

CVE-2012-6550 is a medium-severity flaw (CVSS 4.3) affecting zeroclipboard. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in ZeroClipboard before 1.1.4 allows remote attackers to inject arbitrary web script or HTML via "the clipText returned from the flash object," a different vulnerability than CVE-2013-1808.

Why this priority

EPSS top 8%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	4.5% (top 8%)
CISA exploited list	No
Weakness	CWE-79
Published	2013-04-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: zeroclipboard project

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-04-02 03:22 UTCPublished CVE record published
2026-06-16 23:48 UTCUpdated Record last modified

zeroclipboard project zeroclipboard UPGRADE

Affected: <= 1.0.7 · 1.0.5

Fixed in: newer than 1.0.7

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy zeroclipboard || rpm -q zeroclipboard || zeroclipboard --version

2. UPGRADE to newer than 1.0.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade zeroclipboard

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade zeroclipboard

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: ZeroClipboard 1.9.x - 'id' Cross-Site Scripting

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2012-6550?

zeroclipboard: upgrade to newer than 1.0.7. Exact commands for each OS are on this page.

Is CVE-2012-6550 being exploited?

CVE-2012-6550 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2012-6550 affect?

CVE-2012-6550 affects zeroclipboard. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in ZeroClipboard before 1.1.4 allows remote attackers to inject arbitrary web script or HTML via "the clipText returned from the flash object," a different vulnerability than CVE-2013-1808.

How urgent is CVE-2012-6550?

Priority 43/100. EPSS top 8%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2014-1869 MEDIUM 4.3 UPGRADE UPGRADE Multiple cross-site scripting (XSS) vulnerabilities in ZeroClipboard.swf in ZeroClipboard before 1.3.2, as mai
CVE-2013-1808 MEDIUM 4.3 UPGRADE Cross-site scripting (XSS) vulnerability in ZeroClipboard.swf and ZeroClipboard10.swf in ZeroClipboard before

References

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