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CVE-2014-5203

25
FAUCET Score

CVE-2014-5203 is a critical vulnerability affecting WordPress versions 3.9.x prior to 3.9.2, specifically within the wp-includes/class-wp-customize-widgets.php file. This flaw allows unauthenticated remote attackers to execute arbitrary code by injecting specially crafted serialized data. With a CVSS score of 7.5, it presents a high severity risk due to its network-based attack vector and low attack complexity, potentially leading to compromise of confidentiality, integrity, and availability. While no public exploits or active exploitation have been identified, and community discussion remains minimal, the potential for remote code execution warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
3.9.0CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:3.9.0:*:*:*:*:*:*:*
3.9.1CPE matchmatch criteria
cpe:2.3:a:wordpress:wordpress:3.9.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.89%
Probability of exploitation in next 30 days
EPSS Percentile
89.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0389 is in the 81st percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

openwall.com / lists/oss-security/2014/08/13/3
core.trac.wordpress.org / changeset/29389
wordpress.org / news/2014/08/wordpress-3-9-2
PatchVendor Advisory