CVE-2013-0237: Cross-site scripting (XSS) vulnerability in Plupload.as in Moxiecode plupload before 1.5.5, as used in WordPress before 3.5.1 and other products, allows remote attackers to inject arbitrary web script

medium Affects WordPress core. Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

Cross-site scripting (XSS) vulnerability in Plupload.as in Moxiecode plupload before 1.5.5, as used in WordPress before 3.5.1 and other products, allows remote attackers to inject arbitrary web script

Package
WordPress core WordPress
Affected versions
<=3.5.0 or =0.71 or =1.0 or =1.0.1 or =1.0.2 or =1.1.1 or =1.2 or =1.2.1 or =1.2.2 or =1.2.3 or =1.2.4 or =1.2.5 or =1.3 or =1.3.2 or =1.3.3 or =1.5 or =1.5.1 or =1.5.1.1 or =1.5.1.2 or =1.5.1.3 or =1.5.2 or =1.6.2 or =2.0 or =2.0.1 or =2.0.2 or =2.0.4 or =2.0.5 or =2.0.6 or =2.0.7 or =2.0.8 or =2.0.9 or =2.0.10 or =2.0.11 or =2.1 or =2.1.1 or =2.1.2 or =2.1.3 or =2.2 or =2.2.1 or =2.2.2 or =2.2.3 or =2.3 or =2.3.1 or =2.3.2 or =2.3.3 or =2.5 or =2.5.1 or =2.6 or =2.6.1 or =2.6.2 or =2.6.3 or =2.6.5 or =2.7 or =2.7.1 or =2.8 or =2.8.1 or =2.8.2 or =2.8.3 or =2.8.4 or =2.8.5 or =2.8.5.1 or =2.8.5.2 or =2.8.6 or =2.9 or =2.9.1 or =2.9.1.1 or =2.9.2 or =3.3 or =3.3.1 or =3.3.2 or =3.3.3 or =3.4.0 or =3.4.1 or =3.4.2
Fixed in
no fix recorded
Severity
medium  CVSS 4.3
Exploitation
not on CISA KEV · EPSS 3% (87.8th percentile)
Published
2013-07-08
Source
nvd

References

CWE-79
NVD recordWordPress core advisories

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden wordpress /var/www/html

# or, without Composer
pipx install phpwarden   &&   phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

Install docs   How findings are ranked

Related advisories