CVE-2014-6243: Cross-site scripting (XSS) vulnerability in the EWWW Image Optimizer plugin before 2.0.2 for WordPress allows

Q: How do I fix CVE-2014-6243?

ewww image optimizer plugin: upgrade to newer than 2.01. Exact commands for each OS are on this page.

Q: Is CVE-2014-6243 being exploited?

CVE-2014-6243 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-2014-6243 affect?

CVE-2014-6243 affects ewww image optimizer plugin. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in the EWWW Image Optimizer plugin before 2.0.2 for WordPress allows remote attackers to inject arbitrary web script or HTML via the error parameter in the ewww-image-optimizer.php page to wp-admin/o

Q: How urgent is CVE-2014-6243?

Priority 40/100. Public exploit reference

This month

MEDIUM 4.3UPGRADE

CVE-2014-6243 is a medium-severity flaw (CVSS 4.3) affecting ewww image optimizer plugin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in the EWWW Image Optimizer plugin before 2.0.2 for WordPress allows remote attackers to inject arbitrary web script or HTML via the error parameter in the ewww-image-optimizer.php page to wp-admin/options-general.php, which is not properly handled in a pngout error message.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	2.1% (top 19%)
CISA exploited list	No
Weakness	CWE-79
Published	2014-10-10
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ewww image optimizer plugin project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2014-10-10 14:55 UTCPublished CVE record published
2026-06-17 00:12 UTCUpdated Record last modified

ewww image optimizer plugin project ewww image optimizer plugin UPGRADE

Affected: <= 2.01 · 2.0.0

Fixed in: newer than 2.01

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ewww-image-optimizer-plugin || rpm -q ewww-image-optimizer-plugin || ewww-image-optimizer-plugin --version

2. UPGRADE to newer than 2.01 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ewww-image-optimizer-plugin

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ewww-image-optimizer-plugin

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-2014-6243?

ewww image optimizer plugin: upgrade to newer than 2.01. Exact commands for each OS are on this page.

Is CVE-2014-6243 being exploited?

CVE-2014-6243 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-2014-6243 affect?

CVE-2014-6243 affects ewww image optimizer plugin. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in the EWWW Image Optimizer plugin before 2.0.2 for WordPress allows remote attackers to inject arbitrary web script or HTML via the error parameter in the ewww-image-optimizer.php page to wp-admin/o

How urgent is CVE-2014-6243?

Priority 40/100. Public exploit reference

Software pages

WordPress vulnerabilities · PHP vulnerabilities

References

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