CVE-2026-2301

MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-02-25. NVD baseline CVSS 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The Post Duplicator plugin for WordPress is vulnerable to unauthorized arbitrary protected post meta insertion in all versions up to, and including, 3.0.8. This is due to the duplicate_post() function in includes/api.php using $wpdb->insert() directly to the wp_postmeta table instead of WordPress's standard add_post_meta() function, which would call is_protected_meta() to prevent lower-privileged users from setting protected meta keys (those starting with _). This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary protected post meta keys such as _wp_page_template, _wp_attached_file, and other sensitive meta keys on duplicated posts via the customMetaData JSON array parameter in the /wp-json/post-duplicator/v1/duplicate-post REST API endpoint.

CVSS v3
4.3
EG Score
4.3(medium)
EPSS
11.5%
KEV
Not listed

Published

February 25, 2026

Last Modified

April 15, 2026

References (4)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 15× in last 7d / 44× 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.

  1. 2026-07-21 15:24 UTCEPSS rescore
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  35. 2026-06-12 01:51 UTCGHSA enrichment
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  39. 2026-06-10 19:22 UTCGHSA enrichment
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  41. 2026-06-09 18:23 UTCGHSA enrichment
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  44. 2026-06-07 16:31 UTCGHSA enrichment
  45. 2026-06-07 15:25 UTCEPSS rescore
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  74. 2026-05-26 07:18 UTCEPSS rescore
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-2301?
CVE-2026-2301 is a medium vulnerability published on February 25, 2026. The Post Duplicator plugin for WordPress is vulnerable to unauthorized arbitrary protected post meta insertion in all versions up to, and including, 3.0.8. This is due to the duplicatepost() function in includes/api.php using $wpdb->insert() directly to the wppostmeta table instead of WordPress's…
When was CVE-2026-2301 disclosed?
CVE-2026-2301 was first published in the National Vulnerability Database on February 25, 2026, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-2301 actively exploited?
CVE-2026-2301 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 11.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-2301?
CVE-2026-2301 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-2301?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-2301, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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