The Contact Form 7 plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'validate' function and insufficient blocklisting on the 'wpcf7_antiscript_file_name' function in versions up to, and including, 5.8.3. This makes it possible for authenticated attackers with editor-level capabilities or above to upload arbitrary files on the affected site's server, but due to the htaccess configuration, remote code cannot be executed in most cases. By default, the file will be deleted from the server immediately. However, in some cases, other plugins may make it possible for the file to live on the server longer. This can make remote code execution possible when combined with another vulnerability, such as local file inclusion.
CVE-2023-6449
This high-severity CVE scores 7.2 under NVD CVSS v3. EPSS exploit probability: 1.7%, top 25% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.2
- EG Score
- 7.2(medium)
- EG Risk
- 33(Track)EG Risk 33/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity72% × 45%Exploitation2% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 75.3%
- KEV
- Not listed
Published
December 1, 2023
Last Modified
June 17, 2026
References (10)
- security@wordfencehttps://contactform7.com/2023/11/30/contact-form-7-584/
- security@wordfencehttps://github.com/rocklobster-in/contact-form-7/compare/v5.8.3...v5.8.4
- security@wordfencehttps://plugins.trac.wordpress.org/browser/contact-form-7/tags/5.8.3/includes/formatting.php#L275
- security@wordfencehttps://plugins.trac.wordpress.org/changeset/3003556/contact-form-7
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/5d7fb020-6acb-445e-a46b-bdb5aaf8f2b6?source=cve
- af854a3a-2127-422b-91ae-364da2661108https://contactform7.com/2023/11/30/contact-form-7-584/
- af854a3a-2127-422b-91ae-364da2661108https://github.com/rocklobster-in/contact-form-7/compare/v5.8.3...v5.8.4
- af854a3a-2127-422b-91ae-364da2661108https://plugins.trac.wordpress.org/browser/contact-form-7/tags/5.8.3/includes/formatting.php#L275
- af854a3a-2127-422b-91ae-364da2661108https://plugins.trac.wordpress.org/changeset/3003556/contact-form-7
- af854a3a-2127-422b-91ae-364da2661108https://www.wordfence.com/threat-intel/vulnerabilities/id/5d7fb020-6acb-445e-a46b-bdb5aaf8f2b6?source=cve
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 113 total refreshes for this CVE.
- 2026-07-25 14:16 UTCEPSS rescore
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- 2026-07-23 02:30 UTCEG score recompute
- 2026-07-22 23:17 UTCEG score recompute▲ 0.60
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- 2026-06-24 06:32 UTCNVD updateCVSS v3 → 7.2 · severity → HIGH
- 2026-06-23 21:31 UTCEPSS rescore
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- 2026-05-22 05:30 UTCEG score recompute
- 2026-05-22 05:30 UTCGHSA enrichment
- 2026-05-21 17:06 UTCOSV refresh
Related CVEs(same CWE)
Same CWE
10 shownCWE-434
Frequently asked(5)
What is CVE-2023-6449?
When was CVE-2023-6449 disclosed?
Is CVE-2023-6449 actively exploited?
What is the CVSS score of CVE-2023-6449?
How do I remediate CVE-2023-6449?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2023-6449
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