The WordPress plugin Advanced Custom Fields (ACF) version 3.5.1 and below contains a remote file inclusion (RFI) vulnerability in core/actions/export.php. When the PHP configuration directive allow_url_include is enabled (default: Off), an unauthenticated attacker can exploit the acf_abspath POST parameter to include and execute arbitrary remote PHP code. This leads to remote code execution under the web server’s context, allowing full compromise of the host.
Security readout for executives and security teams
Older Advanced Custom Fields WordPress plugin versions can allow a public attacker to make the server run remote PHP code if a risky PHP setting is enabled. Successful exploitation could give control of the web server. The condition is severe but depends on vulnerable plugin versions and allow_url_include being enabled. Exposure is most likely on legacy WordPress sites still running ACF 3.5.1 or older with PHP allow_url_include enabled. The PHP setting defaults to Off, reducing default exposure, but any internet-facing WordPress instance with this combination should be treated as urgent. Prioritize legacy WordPress estate review now. Sites matching the vulnerable version and PHP configuration represent potential full server compromise. If no affected legacy ACF versions exist, residual risk is mainly from stale inventory or unmanaged WordPress instances. Mitigation focus: Inventory WordPress sites for Advanced Custom Fields versions 3.5.1 and older.; Upgrade or remove affected ACF installations following vendor guidance.; Ensure PHP allow_url_include is disabled across web-serving environments..
Prepared
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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cwe · low confidence lookup
CWE-98: Exact CWE lookup
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1CVSS vectors
3Timeline events
1ADP providers
8Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: yesTechnical Impact: total
CVSS vector scores
1 official score
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CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-98 · source CWE mapping
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.