CVE-2007-3543

Unrestricted file upload vulnerability in WordPress before 2.2.1 and WordPress MU before 1.2.3 allows remote authenticated users to upload and execute arbitrary PHP code by making a post that specifies a .php filename in the _wp_attached_file metadata field; and then sending this file's content, along with its post_ID value, to (1) wp-app.php or (2) app.php.

Published: 2007-07-03 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-3543 is rated Moderate Risk (49.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.65%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2007-3543

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.69% 1.65% -0.04%
2 2026-04-13 1.37% 1.69% +0.32%
3 2026-02-20 — 1.37% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-3543

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.0 2.0 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 6.8 6.4 [email protected]

Weakness enumeration for CVE-2007-3543

OS Trackers for CVE-2007-3543

vendor priority summary link
debian not yet assigned CVE-2007-3543 not yet assigned priority: Debian including 1 source packages (wordpress), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2007-3543
ubuntu medium CVE-2007-3543 medium priority: Ubuntu including 1 source packages (wordpress), 9 status rows across 9 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, jaunty, karmic, upstream): not-affected 5, ignored 3, released 1. https://ubuntu.com/security/CVE-2007-3543

NVD evaluator notes for CVE-2007-3543

Impact: Successful exploitation requires valid Editor credentials and that the system is configured to allow uploads.

Affected software / configurations for CVE-2007-3543

Vendor Product Version Raw CPE
wordpress wordpress <= 2.2.0 cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
wordpress wordpress_mu <= 1.2.2 cpe:2.3:a:wordpress:wordpress_mu:*:*:*:*:*:*:*:*

References for CVE-2007-3543

cvelogic Threat Intelligence