The WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 8.0.1 via the 'MappedFields' parameter. This is due to missing capability checks on the AJAX handlers for install_addon, saveMappedFields, and StartImport, combined with the plugin nonce being exposed to any authenticated user who can load an admin page, allowing a Subscriber to install the Import WooCommerce add-on, persist attacker-controlled PHP expressions in the MappedFields parameter, and trigger evaluation via eval() in ImportHelpers::get_meta_values(). This makes it possible for authenticated attackers, with subscriber-level access and above, to execute code on the server.
CVE-2026-13353
HIGHPre-NVD 8.88.8—Trending — 4 sources updated this week
EchelonGraph scoreHIGH confidence
Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-11. a secondary CVSS source baseline 8.8; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(high)
- EPSS
- 45.0%
- KEV
- Not listed
Published
July 11, 2026
Last Modified
July 13, 2026
References (6)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/InstallAddons.php#L66
- security@wordfencehttps://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/SaveMapping.php#L1562
- security@wordfencehttps://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/SaveMapping.php#L185
- security@wordfencehttps://plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/tags/8.0.1/wp-ultimate-csv-importer.php#L419
- security@wordfencehttps://plugins.trac.wordpress.org/changeset/3591135/wp-ultimate-csv-importer
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/e89fc348-1146-4593-8bf5-127f783ab786?source=cve
Vendor Advisories for CVE-2026-13353(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 25× in last 7d / 25× 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.
- 2026-07-15 18:18 UTCEG score recompute
- 2026-07-15 18:18 UTCGHSA enrichment
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 05:59 UTCEG score recompute
- 2026-07-15 05:59 UTCGHSA enrichment
- 2026-07-15 02:00 UTCEPSS rescore
- 2026-07-14 17:38 UTCEG score recompute
- 2026-07-14 17:38 UTCGHSA enrichment
- 2026-07-14 05:20 UTCEG score recompute
- 2026-07-14 05:20 UTCGHSA enrichment
- 2026-07-13 22:30 UTCEPSS rescore
- 2026-07-13 17:01 UTCEG score recompute
- 2026-07-13 17:01 UTCGHSA enrichment
- 2026-07-13 06:12 UTCEPSS rescore
- 2026-07-13 04:43 UTCEG score recompute
- 2026-07-13 04:43 UTCGHSA enrichment
- 2026-07-12 16:24 UTCEG score recompute
- 2026-07-12 16:24 UTCGHSA enrichment
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-12 04:05 UTCEG score recompute
- 2026-07-12 04:05 UTCGHSA enrichment
- 2026-07-11 15:46 UTCEG score recompute
- 2026-07-11 15:46 UTCGHSA enrichment
- 2026-07-11 03:28 UTCEG score recompute
- 2026-07-11 03:27 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-94
- CVE-2006-1359NVD 0.0EG 9.0EPSS 99%NONE
- CVE-2005-1921NVD 0.0EG 9.0EPSS 100%NONE
- CVE-2005-3302EG 7.3HIGH
- CVE-2005-1876EG 4.5MEDIUM
- CVE-2003-1599EG 0.0NONE
- CVE-2006-1318EG 0.0EPSS 96%NONE
- CVE-2006-1301EG 0.0EPSS 95%NONE
- CVE-2006-1308EG 0.0EPSS 95%NONE
- CVE-2006-1309EG 0.0EPSS 95%NONE
- CVE-2006-1304EG 0.0EPSS 95%NONE
Frequently asked(5)
What is CVE-2026-13353?
CVE-2026-13353 is a high vulnerability published on July 11, 2026. The WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 8.0.1 via the 'MappedFields' parameter. This is due to missing capability checks on the AJAX handlers for installaddon,…
When was CVE-2026-13353 disclosed?
CVE-2026-13353 was first published in the National Vulnerability Database on July 11, 2026, with the most recent update on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13353 actively exploited?
CVE-2026-13353 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 45.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-13353?
CVE-2026-13353 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-13353?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13353, 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.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-13353
Is Your Infrastructure Affected by CVE-2026-13353?
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