CVE-2026-13353

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM 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
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

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.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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 computed
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
63%
KEV
Not listed

Published

July 11, 2026

Last Modified

July 13, 2026

References (6)

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 17× in last 7d / 105× 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 157 total refreshes for this CVE.

  1. 2026-08-30 05:58 UTCEG score recompute
  2. 2026-08-30 05:58 UTCGHSA enrichment
  3. 2026-08-30 01:21 UTCEPSS rescore
  4. 2026-08-28 21:40 UTCEPSS rescore
  5. 2026-08-27 21:38 UTCEG score recompute
  6. 2026-08-27 21:38 UTCGHSA enrichment
  7. 2026-08-27 14:24 UTCEPSS rescore
  8. 2026-08-27 00:32 UTCEG score recompute
  9. 2026-08-27 00:32 UTCGHSA enrichment
  10. 2026-08-26 02:47 UTCEG score recompute
  11. 2026-08-26 02:47 UTCGHSA enrichment
  12. 2026-08-25 13:48 UTCEPSS rescore
  13. 2026-08-25 09:46 UTCGHSA enrichment
  14. 2026-08-24 20:09 UTCEG score recompute
  15. 2026-08-24 20:09 UTCGHSA enrichment
  16. 2026-08-24 06:28 UTCGHSA enrichment
  17. 2026-08-23 18:03 UTCGHSA enrichment
  18. 2026-08-23 05:45 UTCEG score recompute
  19. 2026-08-23 05:45 UTCGHSA enrichment
  20. 2026-08-23 00:19 UTCEPSS rescore
  21. 2026-08-22 17:26 UTCGHSA enrichment
  22. 2026-08-22 03:48 UTCEG score recompute
  23. 2026-08-22 03:48 UTCGHSA enrichment
  24. 2026-08-21 23:48 UTCEPSS rescore
  25. 2026-08-21 15:29 UTCGHSA enrichment
Show 75 more
  1. 2026-08-21 03:10 UTCEG score recompute
  2. 2026-08-21 03:10 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 14:47 UTCGHSA enrichment
  5. 2026-08-20 01:28 UTCEG score recompute
  6. 2026-08-20 01:28 UTCGHSA enrichment
  7. 2026-08-19 17:03 UTCEPSS rescore
  8. 2026-08-19 09:15 UTCGHSA enrichment
  9. 2026-08-18 20:31 UTCEG score recompute
  10. 2026-08-18 20:31 UTCGHSA enrichment
  11. 2026-08-18 13:48 UTCEPSS rescore
  12. 2026-08-18 06:11 UTCGHSA enrichment
  13. 2026-08-17 16:46 UTCEG score recompute
  14. 2026-08-17 16:46 UTCGHSA enrichment
  15. 2026-08-17 03:52 UTCGHSA enrichment
  16. 2026-08-16 15:33 UTCEG score recompute
  17. 2026-08-16 15:33 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 03:15 UTCEG score recompute
  20. 2026-08-16 03:15 UTCGHSA enrichment
  21. 2026-08-16 02:14 UTCEPSS rescore
  22. 2026-08-15 14:57 UTCGHSA enrichment
  23. 2026-08-15 02:38 UTCEG score recompute
  24. 2026-08-15 02:38 UTCGHSA enrichment
  25. 2026-08-15 01:30 UTCEPSS rescore
  26. 2026-08-14 14:19 UTCGHSA enrichment
  27. 2026-08-14 02:00 UTCEG score recompute
  28. 2026-08-14 02:00 UTCGHSA enrichment
  29. 2026-08-13 22:00 UTCEPSS rescore
  30. 2026-08-13 13:42 UTCGHSA enrichment
  31. 2026-08-13 01:24 UTCEG score recompute
  32. 2026-08-13 01:24 UTCGHSA enrichment
  33. 2026-08-12 13:50 UTCEPSS rescore
  34. 2026-08-12 13:05 UTCGHSA enrichment
  35. 2026-08-12 00:46 UTCEG score recompute
  36. 2026-08-12 00:46 UTCGHSA enrichment
  37. 2026-08-11 13:42 UTCEPSS rescore
  38. 2026-08-11 12:28 UTCGHSA enrichment
  39. 2026-08-11 00:04 UTCEG score recompute
  40. 2026-08-11 00:04 UTCGHSA enrichment
  41. 2026-08-10 23:59 UTCEPSS rescore
  42. 2026-08-10 11:46 UTCEG score recompute
  43. 2026-08-10 11:46 UTCGHSA enrichment
  44. 2026-08-09 23:27 UTCEG score recompute
  45. 2026-08-09 23:27 UTCGHSA enrichment
  46. 2026-08-09 13:46 UTCEPSS rescore
  47. 2026-08-09 11:09 UTCGHSA enrichment
  48. 2026-08-08 22:50 UTCEG score recompute
  49. 2026-08-08 22:50 UTCGHSA enrichment
  50. 2026-08-08 16:37 UTCEPSS rescore
  51. 2026-08-08 10:31 UTCGHSA enrichment
  52. 2026-08-07 22:13 UTCEG score recompute
  53. 2026-08-07 22:13 UTCGHSA enrichment
  54. 2026-08-07 09:54 UTCGHSA enrichment
  55. 2026-08-06 21:36 UTCEG score recompute
  56. 2026-08-06 21:36 UTCGHSA enrichment
  57. 2026-08-06 13:46 UTCEPSS rescore
  58. 2026-08-06 09:17 UTCGHSA enrichment
  59. 2026-08-05 20:59 UTCEG score recompute
  60. 2026-08-05 20:59 UTCGHSA enrichment
  61. 2026-08-05 19:17 UTCEPSS rescore
  62. 2026-08-05 08:41 UTCGHSA enrichment
  63. 2026-08-04 20:21 UTCEG score recompute
  64. 2026-08-04 20:21 UTCGHSA enrichment
  65. 2026-08-04 15:09 UTCEPSS rescore
  66. 2026-08-04 10:38 UTCEPSS rescore
  67. 2026-08-04 08:02 UTCGHSA enrichment
  68. 2026-08-03 18:19 UTCEG score recompute
  69. 2026-08-03 18:19 UTCGHSA enrichment
  70. 2026-08-03 10:35 UTCEPSS rescore
  71. 2026-08-03 06:00 UTCGHSA enrichment
  72. 2026-08-02 17:05 UTCGHSA enrichment
  73. 2026-08-02 04:46 UTCEG score recompute
  74. 2026-08-02 04:46 UTCGHSA enrichment
  75. 2026-08-02 02:26 UTCEPSS rescore

Related CVEs(same CWE)

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 1% probability of exploitation in the next 30 days, which ranks it in the top 36.9% of all scored CVEs.
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.

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