CVE-2026-11496

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-09-11. A secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.5Exploit: None knownExposed services: Not assessed

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

The Woo PDF Invoice Builder plugin (also distributed as "PDF Builder for WooCommerce") for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.0.8. This is due to the InspectOrder() AJAX handler (woocommerce-pdf-invoice-ajax.php:513), registered on wp_ajax_rednao_wcpdfinv_inspect_order, performing no capability check and no nonce verification before loading an arbitrary order by the attacker-supplied 'OrderNumber' POST field and serializing its full WC_Order::get_data() and meta to the response. This makes it possible for authenticated attackers with Subscriber-level access and above to read every WooCommerce order on the site — including billing/shipping address, email, phone number, payment method, gateway transaction ID, and order totals — by iterating order IDs.

CVSS v3
6.5
EG Score
6.5MEDIUMhigh confidence
EG Risk
29
EG Risk 29/100CISA SSVC

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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
15th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 11, 2026

Last Modified

September 11, 2026

Advisory Details (1)

Auto-updated Sep 11, 2026
No patch confirmed yet.
generic

PDF Builder for WooCommerce. Create invoices,packing slips and more – WordPress plugin | WordPress.org

https://wordpress.org/plugins/woo-pdf-invoice-builder/

Vendor Advisories for CVE-2026-11496(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 18× in last 7d / 66× 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.

  1. 2026-10-04 23:21 UTCEPSS rescore
  2. 2026-10-04 10:56 UTCEG score recompute
  3. 2026-10-04 10:56 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-03 10:18 UTCEG score recompute
  6. 2026-10-03 10:18 UTCGHSA enrichment
  7. 2026-10-02 07:18 UTCEG score recompute
  8. 2026-10-02 07:18 UTCGHSA enrichment
  9. 2026-10-01 19:49 UTCEPSS rescore
  10. 2026-10-01 06:51 UTCEG score recompute
  11. 2026-10-01 06:51 UTCGHSA enrichment
  12. 2026-09-30 15:02 UTCEPSS rescore
  13. 2026-09-30 06:21 UTCEG score recompute
  14. 2026-09-30 06:21 UTCGHSA enrichment
  15. 2026-09-29 15:20 UTCEPSS rescore
  16. 2026-09-29 05:54 UTCEG score recompute
  17. 2026-09-29 05:54 UTCGHSA enrichment
  18. 2026-09-28 13:50 UTCEPSS rescore
  19. 2026-09-28 05:27 UTCEG score recompute
  20. 2026-09-28 05:27 UTCGHSA enrichment
  21. 2026-09-27 05:01 UTCEG score recompute
  22. 2026-09-27 05:01 UTCGHSA enrichment
  23. 2026-09-26 15:58 UTCEPSS rescore
  24. 2026-09-26 04:09 UTCEG score recompute
  25. 2026-09-26 04:09 UTCGHSA enrichment
Show 41 more
  1. 2026-09-25 03:21 UTCEG score recompute
  2. 2026-09-25 03:21 UTCGHSA enrichment
  3. 2026-09-24 02:54 UTCEG score recompute
  4. 2026-09-24 02:54 UTCGHSA enrichment
  5. 2026-09-23 13:47 UTCEPSS rescore
  6. 2026-09-23 02:27 UTCEG score recompute
  7. 2026-09-23 02:27 UTCGHSA enrichment
  8. 2026-09-22 01:59 UTCEG score recompute
  9. 2026-09-22 01:59 UTCGHSA enrichment
  10. 2026-09-21 01:33 UTCEG score recompute
  11. 2026-09-21 01:33 UTCGHSA enrichment
  12. 2026-09-20 20:15 UTCEPSS rescore
  13. 2026-09-20 01:06 UTCEG score recompute
  14. 2026-09-20 01:06 UTCGHSA enrichment
  15. 2026-09-19 00:39 UTCEG score recompute
  16. 2026-09-19 00:39 UTCGHSA enrichment
  17. 2026-09-18 19:27 UTCEPSS rescore
  18. 2026-09-18 00:12 UTCEG score recompute
  19. 2026-09-18 00:12 UTCGHSA enrichment
  20. 2026-09-16 23:45 UTCEG score recompute
  21. 2026-09-16 23:45 UTCGHSA enrichment
  22. 2026-09-16 05:14 UTCEPSS rescore
  23. 2026-09-15 23:18 UTCEG score recompute
  24. 2026-09-15 23:18 UTCGHSA enrichment
  25. 2026-09-14 22:43 UTCGHSA enrichment
  26. 2026-09-13 22:16 UTCEG score recompute
  27. 2026-09-13 22:16 UTCGHSA enrichment
  28. 2026-09-13 16:46 UTCEPSS rescore
  29. 2026-09-12 21:49 UTCEG score recompute
  30. 2026-09-12 21:49 UTCGHSA enrichment
  31. 2026-09-12 15:00 UTCEPSS rescore
  32. 2026-09-11 21:22 UTCEG score recompute
  33. 2026-09-11 21:22 UTCGHSA enrichment
  34. 2026-09-11 20:29 UTCEG score recompute
  35. 2026-09-11 20:29 UTCGHSA enrichment
  36. 2026-09-11 14:52 UTCEPSS rescore
  37. 2026-09-11 13:32 UTCEG score recompute
  38. 2026-09-11 13:32 UTCGHSA enrichment
  39. 2026-09-11 04:20 UTCEG score recompute
  40. 2026-09-11 03:50 UTCEG score recompute
  41. 2026-09-11 03:49 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-11496?
CVE-2026-11496 is a medium vulnerability published on September 11, 2026. The Woo PDF Invoice Builder plugin (also distributed as "PDF Builder for WooCommerce") for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.0.8. This is due to the InspectOrder() AJAX handler (woocommerce-pdf-invoice-ajax.php:513), registered on…
When was CVE-2026-11496 disclosed?
CVE-2026-11496 was first published on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11496 actively exploited?
CVE-2026-11496 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (15th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-11496?
CVE-2026-11496 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-11496?
No fix for CVE-2026-11496 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-11496 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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