CVE-2026-16788

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreMEDIUM confidence

Score 6.4 from GitHub Security Advisory published 2026-09-01. A secondary CVSS source baseline 6.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.4Exploit: 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 Live Composer – Free WordPress Website Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via dslc_module_projects_output Shortcode in all versions up to, and including, 2.1.19 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress's shortcode-aware kses handling preserves the serialized shortcode body as a placeholder before content filtering runs, allowing attacker-controlled values such as view_all_link, main_heading_link_title, main_filter_title_all, and button_text to reach render-time sinks entirely unescaped.

CVSS v3
6.4
EG Score
6.4MEDIUMmedium 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
Severity64% × 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
0.2%
EPSS %ILE
8th
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 1, 2026

Last Modified

September 1, 2026

References (7)

Vendor Advisories for CVE-2026-16788(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 19× in last 7d / 75× 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. 2026-10-05 05:21 UTCEG score recompute
  2. 2026-10-05 05:21 UTCGHSA enrichment
  3. 2026-10-04 23:21 UTCEPSS rescore
  4. 2026-10-04 05:40 UTCEG score recompute
  5. 2026-10-04 05:40 UTCGHSA enrichment
  6. 2026-10-03 14:25 UTCEPSS rescore
  7. 2026-10-03 05:59 UTCEG score recompute
  8. 2026-10-03 05:59 UTCGHSA enrichment
  9. 2026-10-02 06:09 UTCEG score recompute
  10. 2026-10-02 06:09 UTCGHSA enrichment
  11. 2026-10-01 19:49 UTCEPSS rescore
  12. 2026-10-01 05:36 UTCEG score recompute
  13. 2026-10-01 05:36 UTCGHSA enrichment
  14. 2026-09-30 15:02 UTCEPSS rescore
  15. 2026-09-30 05:56 UTCEG score recompute
  16. 2026-09-30 05:56 UTCGHSA enrichment
  17. 2026-09-29 15:20 UTCEPSS rescore
  18. 2026-09-29 06:06 UTCEG score recompute
  19. 2026-09-29 06:06 UTCGHSA enrichment
  20. 2026-09-28 13:51 UTCEPSS rescore
  21. 2026-09-28 06:26 UTCEG score recompute
  22. 2026-09-28 06:26 UTCGHSA enrichment
  23. 2026-09-27 13:47 UTCEPSS rescore
  24. 2026-09-27 06:46 UTCEG score recompute
  25. 2026-09-27 06:46 UTCGHSA enrichment
Show 66 more
  1. 2026-09-26 15:58 UTCEPSS rescore
  2. 2026-09-26 07:04 UTCEG score recompute
  3. 2026-09-26 07:04 UTCGHSA enrichment
  4. 2026-09-24 19:58 UTCEG score recompute
  5. 2026-09-24 19:58 UTCGHSA enrichment
  6. 2026-09-23 20:18 UTCEG score recompute
  7. 2026-09-23 20:18 UTCGHSA enrichment
  8. 2026-09-22 20:37 UTCEG score recompute
  9. 2026-09-22 20:37 UTCGHSA enrichment
  10. 2026-09-21 20:57 UTCGHSA enrichment
  11. 2026-09-20 21:17 UTCEG score recompute
  12. 2026-09-20 21:17 UTCGHSA enrichment
  13. 2026-09-19 21:36 UTCEG score recompute
  14. 2026-09-19 21:36 UTCGHSA enrichment
  15. 2026-09-18 21:55 UTCEG score recompute
  16. 2026-09-18 21:55 UTCGHSA enrichment
  17. 2026-09-18 19:27 UTCEPSS rescore
  18. 2026-09-17 22:15 UTCEG score recompute
  19. 2026-09-17 22:15 UTCGHSA enrichment
  20. 2026-09-16 22:34 UTCEG score recompute
  21. 2026-09-16 22:34 UTCGHSA enrichment
  22. 2026-09-16 14:07 UTCEPSS rescore
  23. 2026-09-16 05:14 UTCEPSS rescore
  24. 2026-09-15 22:22 UTCEG score recompute
  25. 2026-09-15 22:22 UTCGHSA enrichment
  26. 2026-09-14 22:38 UTCGHSA enrichment
  27. 2026-09-13 22:57 UTCEG score recompute
  28. 2026-09-13 22:57 UTCGHSA enrichment
  29. 2026-09-13 16:46 UTCEPSS rescore
  30. 2026-09-12 23:17 UTCEG score recompute
  31. 2026-09-12 23:17 UTCGHSA enrichment
  32. 2026-09-12 15:00 UTCEPSS rescore
  33. 2026-09-11 23:36 UTCEG score recompute
  34. 2026-09-11 23:36 UTCGHSA enrichment
  35. 2026-09-11 09:36 UTCEPSS rescore
  36. 2026-09-10 23:55 UTCEG score recompute
  37. 2026-09-10 23:55 UTCGHSA enrichment
  38. 2026-09-10 09:34 UTCEPSS rescore
  39. 2026-09-09 23:40 UTCGHSA enrichment
  40. 2026-09-08 23:27 UTCEG score recompute
  41. 2026-09-08 23:27 UTCGHSA enrichment
  42. 2026-09-08 22:00 UTCEPSS rescore
  43. 2026-09-07 19:10 UTCEG score recompute
  44. 2026-09-07 19:10 UTCGHSA enrichment
  45. 2026-09-07 16:01 UTCEPSS rescore
  46. 2026-09-06 19:30 UTCEG score recompute
  47. 2026-09-06 19:29 UTCGHSA enrichment
  48. 2026-09-06 13:47 UTCEPSS rescore
  49. 2026-09-05 19:48 UTCEG score recompute
  50. 2026-09-05 19:48 UTCGHSA enrichment
  51. 2026-09-04 20:08 UTCEG score recompute
  52. 2026-09-04 20:08 UTCGHSA enrichment
  53. 2026-09-04 05:06 UTCEPSS rescore
  54. 2026-09-03 20:23 UTCGHSA enrichment
  55. 2026-09-02 20:41 UTCEG score recompute
  56. 2026-09-02 20:40 UTCGHSA enrichment
  57. 2026-09-02 14:11 UTCEPSS rescore
  58. 2026-09-01 20:59 UTCGHSA enrichment
  59. 2026-09-01 15:40 UTCEG score recompute
  60. 2026-09-01 15:40 UTCGHSA enrichment
  61. 2026-09-01 15:04 UTCEG score recompute
  62. 2026-09-01 15:04 UTCGHSA enrichment
  63. 2026-09-01 13:53 UTCEPSS rescore
  64. 2026-09-01 10:36 UTCEG score recompute
  65. 2026-09-01 09:39 UTCEG score recompute
  66. 2026-09-01 09:37 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-16788?
CVE-2026-16788 is a medium vulnerability published on September 1, 2026. The Live Composer – Free WordPress Website Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via dslcmoduleprojectsoutput Shortcode in all versions up to, and including, 2.1.19 due to insufficient input sanitization and output escaping. This makes it possible for…
When was CVE-2026-16788 disclosed?
CVE-2026-16788 was first published on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16788 actively exploited?
CVE-2026-16788 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-16788?
CVE-2026-16788 has a CVSS base score of 6.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-16788?
No fix for CVE-2026-16788 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-2026-16788 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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