CVE-2012-2401: Plupload before 1.5.4, as used in wp-includes/js/plupload/ in WordPress before 3.3.2 and other products, enabl

Q: How do I fix CVE-2012-2401?

plupload: upgrade to newer than 1.5.3; wordpress: upgrade to newer than 3.3.1. Exact commands for each OS are on this page.

Q: Is CVE-2012-2401 being exploited?

CVE-2012-2401 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-2012-2401 affect?

CVE-2012-2401 affects plupload, wordpress. Severity is medium (CVSS 5.0). Plupload before 1.5.4, as used in wp-includes/js/plupload/ in WordPress before 3.3.2 and other products, enables scripting regardless of the domain from which the SWF content was loaded, which allows remote attackers to bypass the Same Orig

Q: How urgent is CVE-2012-2401?

Priority 40/100. No elevated risk signals yet.

This month

MEDIUM 5.0UPGRADEUPGRADE

CVE-2012-2401 is a medium-severity flaw (CVSS 5.0) affecting plupload, wordpress. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Plupload before 1.5.4, as used in wp-includes/js/plupload/ in WordPress before 3.3.2 and other products, enables scripting regardless of the domain from which the SWF content was loaded, which allows remote attackers to bypass the Same Origin Policy via crafted content.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	3.5% (top 11%)
CISA exploited list	No
Weakness	CWE-264
Published	2012-04-21
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: moxiecode · wordpress

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

Am I affected?

Timeline

2012-04-21 23:55 UTCPublished CVE record published
2026-06-16 23:41 UTCUpdated Record last modified

moxiecode plupload UPGRADE

Affected: <= 1.5.3 · 1.4.0 · 1.4.1 · 1.4.2 · 1.4.3 · 1.5.0 · 1.5.0 beta · 1.5.1

Fixed in: newer than 1.5.3

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.5.3 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade plupload

Note

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

wordpress wordpress UPGRADE

Affected: <= 3.3.1 · 0.71 · 1.0 · 1.0.1 · 1.0.2 · 1.1.1 · 1.2 · 1.2.1

Fixed in: newer than 3.3.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 3.3.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wordpress

Note

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

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-2012-2401?

plupload: upgrade to newer than 1.5.3; wordpress: upgrade to newer than 3.3.1. Exact commands for each OS are on this page.

Is CVE-2012-2401 being exploited?

CVE-2012-2401 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-2012-2401 affect?

CVE-2012-2401 affects plupload, wordpress. Severity is medium (CVSS 5.0). Plupload before 1.5.4, as used in wp-includes/js/plupload/ in WordPress before 3.3.2 and other products, enables scripting regardless of the domain from which the SWF content was loaded, which allows remote attackers to bypass the Same Orig

How urgent is CVE-2012-2401?

Priority 40/100. No elevated risk signals yet.

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2021-23562 MEDIUM 4.2 UPGRADE This affects the package plupload before 2.3.9
CVE-2016-4566 MEDIUM 6.1 UPGRADE UPGRADE Cross-site scripting (XSS) vulnerability in plupload.flash.swf in Plupload before 2.1.9, as used in WordPress
CVE-2013-0237 MEDIUM 4.3 UPGRADE UPGRADE Cross-site scripting (XSS) vulnerability in Plupload.as in Moxiecode plupload before 1.5.5, as used in WordPre

References

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